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131013301033 = 310861421453
BaseRepresentation
bin111101000000100000…
…0000101001100101001
3110112011112122021022201
41322001000011030221
54121303401113113
6140104153420201
712315426453526
oct1720100051451
9415145567281
10131013301033
11506206581aa
122148410a661
13c47babac44
1464abcba14d
15361bcc0cdd
hex1e81005329

131013301033 has 4 divisors (see below), whose sum is σ = 131014033348. Its totient is φ = 131012568720.

The previous prime is 131013301019. The next prime is 131013301037. The reversal of 131013301033 is 330103310131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 77479835904 + 53533465129 = 278352^2 + 231373^2 .

It is a cyclic number.

It is not a de Polignac number, because 131013301033 - 29 = 131013300521 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131013301033.

It is not an unprimeable number, because it can be changed into a prime (131013301037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100135 + ... + 521587.

It is an arithmetic number, because the mean of its divisors is an integer number (32753508337).

Almost surely, 2131013301033 is an apocalyptic number.

It is an amenable number.

131013301033 is a deficient number, since it is larger than the sum of its proper divisors (732315).

131013301033 is an equidigital number, since it uses as much as digits as its factorization.

131013301033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732314.

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 131013301033 its reverse (330103310131), we get a palindrome (461116611164).

The spelling of 131013301033 in words is "one hundred thirty-one billion, thirteen million, three hundred one thousand, thirty-three".

Divisors: 1 310861 421453 131013301033