125311023 has 32 divisors (see below), whose sum is σ = 196953600. Its totient is φ = 78522048.

The previous prime is 125311009. The next prime is 125311033. The reversal of 125311023 is 320113521.

It is not a de Polignac number, because 125311023 - 2⁴ = 125311007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 125310987 and 125311005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125311033) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 69390 + ... + 71172.

It is an arithmetic number, because the mean of its divisors is an integer number (6154800).

Almost surely, 2^125311023 is an apocalyptic number.

125311023 is a deficient number, since it is larger than the sum of its proper divisors (71642577).

125311023 is a wasteful number, since it uses less digits than its factorization.

125311023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1948 (or 1942 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 125311023 is about 11194.2406173889. The cubic root of 125311023 is about 500.4143538602.

Adding to 125311023 its reverse (320113521), we get a palindrome (445424544).

The spelling of 125311023 in words is "one hundred twenty-five million, three hundred eleven thousand, twenty-three".