51110315431320 has 64 divisors (see below), whose sum is σ = 153383874829920. Its totient is φ = 13624712689664.

The previous prime is 51110315431267. The next prime is 51110315431339. The reversal of 51110315431320 is 2313451301115.

It is a super-3 number, since 3×51110315431320³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73162767 + ... + 73858046.

Almost surely, 2^{51110315431320} is an apocalyptic number.

It is an amenable number.

51110315431320 is an abundant number, since it is smaller than the sum of its proper divisors (102273559398600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51110315431320 is a wasteful number, since it uses less digits than its factorization.

51110315431320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147023724 (or 147023720 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 30.

Adding to 51110315431320 its reverse (2313451301115), we get a palindrome (53423766732435).

The spelling of 51110315431320 in words is "fifty-one trillion, one hundred ten billion, three hundred fifteen million, four hundred thirty-one thousand, three hundred twenty".