2131543203990 has 64 divisors (see below), whose sum is σ = 5145436820160. Its totient is φ = 565109637120.

The previous prime is 2131543203989. The next prime is 2131543204003. The reversal of 2131543203990 is 993023451312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19586046 + ... + 19694574.

It is an arithmetic number, because the mean of its divisors is an integer number (80397450315).

Almost surely, 2^{2131543203990} is an apocalyptic number.

2131543203990 is an abundant number, since it is smaller than the sum of its proper divisors (3013893616170).

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

2131543203990 is a wasteful number, since it uses less digits than its factorization.

2131543203990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112337.

The product of its (nonzero) digits is 174960, while the sum is 42.

The spelling of 2131543203990 in words is "two trillion, one hundred thirty-one billion, five hundred forty-three million, two hundred three thousand, nine hundred ninety".