2131120251700 has 72 divisors (see below), whose sum is σ = 5061061696320. Its totient is φ = 772476806400.

The previous prime is 2131120251671. The next prime is 2131120251731. The reversal of 2131120251700 is 71520211312.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2750560 + ... + 3439159.

It is an arithmetic number, because the mean of its divisors is an integer number (70292523560).

Almost surely, 2^{2131120251700} is an apocalyptic number.

2131120251700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131120251700 is an abundant number, since it is smaller than the sum of its proper divisors (2929941444620).

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

2131120251700 is a wasteful number, since it uses less digits than its factorization.

2131120251700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6190057 (or 6190050 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The spelling of 2131120251700 in words is "two trillion, one hundred thirty-one billion, one hundred twenty million, two hundred fifty-one thousand, seven hundred".