51003371231 has 4 divisors (see below), whose sum is σ = 52762108200. Its totient is φ = 49244634264.

The previous prime is 51003371201. The next prime is 51003371239. The reversal of 51003371231 is 13217330015.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13217330015 = 5 ⋅2643466003.

It is a cyclic number.

It is not a de Polignac number, because 51003371231 - 2³⁴ = 33823502047 is a prime.

It is a super-2 number, since 2×51003371231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51003371231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51003371239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879368441 + ... + 879368498.

It is an arithmetic number, because the mean of its divisors is an integer number (13190527050).

Almost surely, 2^51003371231 is an apocalyptic number.

51003371231 is a deficient number, since it is larger than the sum of its proper divisors (1758736969).

51003371231 is a wasteful number, since it uses less digits than its factorization.

51003371231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758736968.

The product of its (nonzero) digits is 1890, while the sum is 26.

The spelling of 51003371231 in words is "fifty-one billion, three million, three hundred seventy-one thousand, two hundred thirty-one".