2131116353213 has 4 divisors (see below), whose sum is σ = 2152216515228. Its totient is φ = 2110016191200.

The previous prime is 2131116353147. The next prime is 2131116353221. The reversal of 2131116353213 is 3123536111312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1557199502884 + 573916850329 = 1247878^2 + 757573^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131116353213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2131116353213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131116353243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10550080856 + ... + 10550081057.

It is an arithmetic number, because the mean of its divisors is an integer number (538054128807).

Almost surely, 2^{2131116353213} is an apocalyptic number.

It is an amenable number.

2131116353213 is a deficient number, since it is larger than the sum of its proper divisors (21100162015).

2131116353213 is a wasteful number, since it uses less digits than its factorization.

2131116353213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21100162014.

The product of its digits is 9720, while the sum is 32.

The spelling of 2131116353213 in words is "two trillion, one hundred thirty-one billion, one hundred sixteen million, three hundred fifty-three thousand, two hundred thirteen".