51231132125 has 64 divisors (see below), whose sum is σ = 68787264000. Its totient is φ = 37977984000.

The previous prime is 51231132103. The next prime is 51231132131. The reversal of 51231132125 is 52123113215.

It is not a de Polignac number, because 51231132125 - 2⁶ = 51231132061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51231132094 and 51231132103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28829237 + ... + 28831013.

It is an arithmetic number, because the mean of its divisors is an integer number (1074801000).

Almost surely, 2^51231132125 is an apocalyptic number.

It is an amenable number.

51231132125 is a deficient number, since it is larger than the sum of its proper divisors (17556131875).

51231132125 is a wasteful number, since it uses less digits than its factorization.

51231132125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2071 (or 2061 counting only the distinct ones).

The product of its digits is 1800, while the sum is 26.

The spelling of 51231132125 in words is "fifty-one billion, two hundred thirty-one million, one hundred thirty-two thousand, one hundred twenty-five".