125311113 has 6 divisors (see below), whose sum is σ = 181004954. Its totient is φ = 83540736.

The previous prime is 125311111. The next prime is 125311127. The reversal of 125311113 is 311113521.

It can be written as a sum of positive squares in only one way, i.e., 70358544 + 54952569 = 8388^2 + 7413^2 .

It is not a de Polignac number, because 125311113 - 2¹ = 125311111 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125311111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6961720 + ... + 6961737.

Almost surely, 2^125311113 is an apocalyptic number.

It is an amenable number.

125311113 is a deficient number, since it is larger than the sum of its proper divisors (55693841).

125311113 is a wasteful number, since it uses less digits than its factorization.

125311113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13923463 (or 13923460 counting only the distinct ones).

The product of its digits is 90, while the sum is 18.

The square root of 125311113 is about 11194.2446373125. The cubic root of 125311113 is about 500.4144736616.

Adding to 125311113 its reverse (311113521), we get a palindrome (436424634).

The spelling of 125311113 in words is "one hundred twenty-five million, three hundred eleven thousand, one hundred thirteen".