113131230121 has 16 divisors (see below), whose sum is σ = 139303350144. Its totient is φ = 89468694144.

The previous prime is 113131230041. The next prime is 113131230139. The reversal of 113131230121 is 121032131311.

It is a cyclic number.

It is not a de Polignac number, because 113131230121 - 2⁷ = 113131229993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113131230181) 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 15 ways as a sum of consecutive naturals, for example, 92791 + ... + 484636.

It is an arithmetic number, because the mean of its divisors is an integer number (8706459384).

Almost surely, 2^113131230121 is an apocalyptic number.

It is an amenable number.

113131230121 is a deficient number, since it is larger than the sum of its proper divisors (26172120023).

113131230121 is a wasteful number, since it uses less digits than its factorization.

113131230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579600.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 113131230121 its reverse (121032131311), we get a palindrome (234163361432).

The spelling of 113131230121 in words is "one hundred thirteen billion, one hundred thirty-one million, two hundred thirty thousand, one hundred twenty-one".