113203130121 has 8 divisors (see below), whose sum is σ = 167708340960. Its totient is φ = 75468753396.

The previous prime is 113203130113. The next prime is 113203130137. The reversal of 113203130121 is 121031302311.

113203130121 is a `hidden beast` number, since 11 + 320 + 31 + 301 + 2 + 1 = 666.

It is not a de Polignac number, because 113203130121 - 2³ = 113203130113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113203130094 and 113203130103.

It is not an unprimeable number, because it can be changed into a prime (113203130141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2096354235 + ... + 2096354288.

It is an arithmetic number, because the mean of its divisors is an integer number (20963542620).

Almost surely, 2^113203130121 is an apocalyptic number.

It is an amenable number.

113203130121 is a deficient number, since it is larger than the sum of its proper divisors (54505210839).

113203130121 is an equidigital number, since it uses as much as digits as its factorization.

113203130121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4192708532 (or 4192708526 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 113203130121 its reverse (121031302311), we get a palindrome (234234432432).

The spelling of 113203130121 in words is "one hundred thirteen billion, two hundred three million, one hundred thirty thousand, one hundred twenty-one".