2031131245 has 64 divisors (see below), whose sum is σ = 2926264320. Its totient is φ = 1334073600.

The previous prime is 2031131233. The next prime is 2031131251. The reversal of 2031131245 is 5421311302.

It is a happy number.

It is not a de Polignac number, because 2031131245 - 2¹¹ = 2031129197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10634100 + ... + 10634290.

It is an arithmetic number, because the mean of its divisors is an integer number (45722880).

Almost surely, 2^2031131245 is an apocalyptic number.

It is an amenable number.

2031131245 is a deficient number, since it is larger than the sum of its proper divisors (895133075).

2031131245 is a wasteful number, since it uses less digits than its factorization.

2031131245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2031131245 is about 45068.0734556071. The cubic root of 2031131245 is about 1266.4245737312.

Adding to 2031131245 its reverse (5421311302), we get a palindrome (7452442547).

The spelling of 2031131245 in words is "two billion, thirty-one million, one hundred thirty-one thousand, two hundred forty-five".