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131031022324241 = 132910931297245173
BaseRepresentation
bin11101110010110000001001…
…100010100100101000010001
3122011221102222020102001211202
4131302300021202210220101
5114133303013203333431
61142402453132320545
736412451611646504
oct3562601142445021
9564842866361752
10131031022324241
1138828a43148516
1212842834313155
13581623196b2b0
14244dd1472d13b
15102363e5798cb
hex772c098a4a11

131031022324241 has 32 divisors (see below), whose sum is σ = 146223009276960. Its totient is φ = 116583687327744.

The previous prime is 131031022324217. The next prime is 131031022324249. The reversal of 131031022324241 is 142423220130131.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 1104558960400 + 129926463363841 = 1050980^2 + 11398529^2 .

It is not a de Polignac number, because 131031022324241 - 210 = 131031022323217 is a prime.

It is a super-2 number, since 2×1310310223242412 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131031022324249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 534320531 + ... + 534565703.

It is an arithmetic number, because the mean of its divisors is an integer number (4569469039905).

Almost surely, 2131031022324241 is an apocalyptic number.

It is an amenable number.

131031022324241 is a deficient number, since it is larger than the sum of its proper divisors (15191986952719).

131031022324241 is a wasteful number, since it uses less digits than its factorization.

131031022324241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247605.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 131031022324241 its reverse (142423220130131), we get a palindrome (273454242454372).

The spelling of 131031022324241 in words is "one hundred thirty-one trillion, thirty-one billion, twenty-two million, three hundred twenty-four thousand, two hundred forty-one".

Divisors: 1 13 29 377 1093 1297 14209 16861 31697 37613 245173 412061 488969 1417621 3187249 7110017 18429073 41111009 92430221 267974089 317989381 534443117 3483663157 4133861953 7771248581 9221692049 101026231553 119881996637 347562393433 4518311114629 10079309409557 131031022324241