113351225121 has 14 divisors (see below), whose sum is σ = 169949094450. Its totient is φ = 75567482928.

The previous prime is 113351225083. The next prime is 113351225219. The reversal of 113351225121 is 121522153311.

113351225121 is a `hidden beast` number, since 1 + 1 + 3 + 3 + 512 + 25 + 121 = 666.

It can be written as a sum of positive squares in only one way, i.e., 100904699025 + 12446526096 = 317655^2 + 111564^2 .

It is a de Polignac number, because none of the positive numbers 2^k-113351225121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113351225321) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 77743596 + ... + 77745053.

Almost surely, 2^113351225121 is an apocalyptic number.

It is an amenable number.

113351225121 is a deficient number, since it is larger than the sum of its proper divisors (56597869329).

113351225121 is an frugal number, since it uses more digits than its factorization.

113351225121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155488667 (or 155488652 counting only the distinct ones).

The product of its digits is 1800, while the sum is 27.

Adding to 113351225121 its reverse (121522153311), we get a palindrome (234873378432).

The spelling of 113351225121 in words is "one hundred thirteen billion, three hundred fifty-one million, two hundred twenty-five thousand, one hundred twenty-one".