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131001411240401 = 1323795330417229
BaseRepresentation
bin11101110010010100100100…
…100101010000000111010001
3122011211121112120221011010212
4131302110210211100013101
5114132311342234143101
61142341114552133505
736410353043620142
oct3562244445200721
9564747476834125
10131001411240401
11388174284999a9
1212838b4b697295
1358134c3036800
14244c705c01ac9
1510229a9b751bb
hex7725249501d1

131001411240401 has 48 divisors (see below), whose sum is σ = 145908491704560. Its totient is φ = 117477791907840.

The previous prime is 131001411240389. The next prime is 131001411240421. The reversal of 131001411240401 is 104042114100131.

It can be written as a sum of positive squares in 24 ways, for example, as 11526018210001 + 119475393030400 = 3394999^2 + 10930480^2 .

It is not a de Polignac number, because 131001411240401 - 230 = 131000337498577 is a prime.

It is a super-2 number, since 2×1310014112404012 (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (131001411240421) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18121646855 + ... + 18121654083.

It is an arithmetic number, because the mean of its divisors is an integer number (3039760243845).

Almost surely, 2131001411240401 is an apocalyptic number.

It is an amenable number.

131001411240401 is a deficient number, since it is larger than the sum of its proper divisors (14907080464159).

131001411240401 is a wasteful number, since it uses less digits than its factorization.

131001411240401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11286 (or 11273 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 131001411240401 its reverse (104042114100131), we get a palindrome (235043525340532).

The spelling of 131001411240401 in words is "one hundred thirty-one trillion, one billion, four hundred eleven million, two hundred forty thousand, four hundred one".

Divisors: 1 13 37 169 481 953 3041 6253 7229 12389 35261 39533 93977 112517 161057 267473 458393 513929 1221701 1462721 2898073 3477149 5959109 6889237 19015373 21983389 37674949 45202937 89560081 107228701 254901769 285784057 489774337 813385393 1164281053 1393973113 3313722997 3715192741 10574010109 18121650469 20950169717 43078398961 137462131417 272352206321 775156279529 3540578682173 10077031633877 131001411240401