11311020125 has 32 divisors (see below), whose sum is σ = 14977872000. Its totient is φ = 8498668800.

The previous prime is 11311020107. The next prime is 11311020137. The reversal of 11311020125 is 52102011311.

It is not a de Polignac number, because 11311020125 - 2²⁰ = 11309971549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1055042 + ... + 1065708.

It is an arithmetic number, because the mean of its divisors is an integer number (468058500).

Almost surely, 2^11311020125 is an apocalyptic number.

It is an amenable number.

11311020125 is a deficient number, since it is larger than the sum of its proper divisors (3666851875).

11311020125 is a wasteful number, since it uses less digits than its factorization.

11311020125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11198 (or 11188 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 17.

Adding to 11311020125 its reverse (52102011311), we get a palindrome (63413031436).

The spelling of 11311020125 in words is "eleven billion, three hundred eleven million, twenty thousand, one hundred twenty-five".