113012020121 has 64 divisors (see below), whose sum is σ = 160103086080. Its totient is φ = 76825635840.

The previous prime is 113012020117. The next prime is 113012020129. The reversal of 113012020121 is 121020210311.

It is a cyclic number.

It is not a de Polignac number, because 113012020121 - 2² = 113012020117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113012020096 and 113012020105.

It is not an unprimeable number, because it can be changed into a prime (113012020129) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8228366 + ... + 8242088.

It is an arithmetic number, because the mean of its divisors is an integer number (2501610720).

Almost surely, 2^113012020121 is an apocalyptic number.

113012020121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113012020121 is a deficient number, since it is larger than the sum of its proper divisors (47091065959).

113012020121 is a wasteful number, since it uses less digits than its factorization.

113012020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14206.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 113012020121 its reverse (121020210311), we get a palindrome (234032230432).

The spelling of 113012020121 in words is "one hundred thirteen billion, twelve million, twenty thousand, one hundred twenty-one".