2131543203999 has 32 divisors (see below), whose sum is σ = 3263881493760. Its totient is φ = 1223749555200.

The previous prime is 2131543203989. The next prime is 2131543204003. The reversal of 2131543203999 is 9993023451312.

It is not a de Polignac number, because 2131543203999 - 2¹⁶ = 2131543138463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131543203919) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7651119 + ... + 7924815.

It is an arithmetic number, because the mean of its divisors is an integer number (101996296680).

Almost surely, 2^{2131543203999} is an apocalyptic number.

2131543203999 is a deficient number, since it is larger than the sum of its proper divisors (1132338289761).

2131543203999 is a wasteful number, since it uses less digits than its factorization.

2131543203999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286151.

The product of its (nonzero) digits is 1574640, while the sum is 51.

The spelling of 2131543203999 in words is "two trillion, one hundred thirty-one billion, five hundred forty-three million, two hundred three thousand, nine hundred ninety-nine".