113104202541561 has 96 divisors (see below), whose sum is σ = 210710125117440. Its totient is φ = 56737280476800.

The previous prime is 113104202541527. The next prime is 113104202541563. The reversal of 113104202541561 is 165145202401311.

113104202541561 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 0 + 42 + 0 + 2 + 54 + 1 + 561 = 666.

It is not a de Polignac number, because 113104202541561 - 2⁶ = 113104202541497 is a prime.

It is a super-3 number, since 3×113104202541561³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (113104202541563) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 4261075 + ... + 15632183.

It is an arithmetic number, because the mean of its divisors is an integer number (2194897136640).

Almost surely, 2^{113104202541561} is an apocalyptic number.

113104202541561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113104202541561 is a deficient number, since it is larger than the sum of its proper divisors (97605922575879).

113104202541561 is a wasteful number, since it uses less digits than its factorization.

113104202541561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11371627 (or 11371624 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

Adding to 113104202541561 its reverse (165145202401311), we get a palindrome (278249404942872).

The spelling of 113104202541561 in words is "one hundred thirteen trillion, one hundred four billion, two hundred two million, five hundred forty-one thousand, five hundred sixty-one".