2151005031320 has 32 divisors (see below), whose sum is σ = 4884992744400. Its totient is φ = 852360870528.

The previous prime is 2151005031313. The next prime is 2151005031347. The reversal of 2151005031320 is 231305001512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251281355 + ... + 251289914.

Almost surely, 2^{2151005031320} is an apocalyptic number.

2151005031320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2151005031320 is an abundant number, since it is smaller than the sum of its proper divisors (2733987713080).

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

2151005031320 is a wasteful number, since it uses less digits than its factorization.

2151005031320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502571387 (or 502571383 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The spelling of 2151005031320 in words is "two trillion, one hundred fifty-one billion, five million, thirty-one thousand, three hundred twenty".