2031131052 has 42 divisors (see below), whose sum is σ = 5329288748. Its totient is φ = 677042712.

The previous prime is 2031131041. The next prime is 2031131059. The reversal of 2031131052 is 2501311302.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2031131059) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 345358 + ... + 351189.

Almost surely, 2^2031131052 is an apocalyptic number.

It is an amenable number.

2031131052 is an abundant number, since it is smaller than the sum of its proper divisors (3298157696).

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

2031131052 is an equidigital number, since it uses as much as digits as its factorization.

2031131052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 696569 (or 696552 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2031131052 is about 45068.0713144017. The cubic root of 2031131052 is about 1266.4245336189.

Adding to 2031131052 its reverse (2501311302), we get a palindrome (4532442354).

The spelling of 2031131052 in words is "two billion, thirty-one million, one hundred thirty-one thousand, fifty-two".