125031325251 has 48 divisors (see below), whose sum is σ = 196789098240. Its totient is φ = 70393055040.

The previous prime is 125031325231. The next prime is 125031325253. The reversal of 125031325251 is 152523130521.

It is not a de Polignac number, because 125031325251 - 2⁷ = 125031325123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (125031325253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20735305 + ... + 20741333.

It is an arithmetic number, because the mean of its divisors is an integer number (4099772880).

Almost surely, 2^125031325251 is an apocalyptic number.

125031325251 is a deficient number, since it is larger than the sum of its proper divisors (71757772989).

125031325251 is a wasteful number, since it uses less digits than its factorization.

125031325251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8104 (or 8097 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 125031325251 its reverse (152523130521), we get a palindrome (277554455772).

The spelling of 125031325251 in words is "one hundred twenty-five billion, thirty-one million, three hundred twenty-five thousand, two hundred fifty-one".