2120741572831 has 16 divisors (see below), whose sum is σ = 2426743975680. Its totient is φ = 1815500433600.

The previous prime is 2120741572819. The next prime is 2120741572841. The reversal of 2120741572831 is 1382751470212.

It is not a de Polignac number, because 2120741572831 - 2¹³ = 2120741564639 is a prime.

It is a super-2 number, since 2×2120741572831² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120741572801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18192531 + ... + 18308731.

It is an arithmetic number, because the mean of its divisors is an integer number (151671498480).

Almost surely, 2^{2120741572831} is an apocalyptic number.

2120741572831 is a deficient number, since it is larger than the sum of its proper divisors (306002402849).

2120741572831 is a wasteful number, since it uses less digits than its factorization.

2120741572831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119454.

The product of its (nonzero) digits is 188160, while the sum is 43.

The spelling of 2120741572831 in words is "two trillion, one hundred twenty billion, seven hundred forty-one million, five hundred seventy-two thousand, eight hundred thirty-one".