2031240431 has 16 divisors (see below), whose sum is σ = 2257388448. Its totient is φ = 1827429120.

The previous prime is 2031240371. The next prime is 2031240437. The reversal of 2031240431 is 1340421302.

It is a de Polignac number, because none of the positive numbers 2^k-2031240431 is a prime.

It is a super-2 number, since 2×2031240431² = 8251875377058131522, which 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 (2031240437) 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, 121241 + ... + 136973.

It is an arithmetic number, because the mean of its divisors is an integer number (141086778).

Almost surely, 2^2031240431 is an apocalyptic number.

2031240431 is a deficient number, since it is larger than the sum of its proper divisors (226148017).

2031240431 is an equidigital number, since it uses as much as digits as its factorization.

2031240431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15863 (or 15841 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2031240431 is about 45069.2847846513. The cubic root of 2031240431 is about 1266.4472660701.

Adding to 2031240431 its reverse (1340421302), we get a palindrome (3371661733).

The spelling of 2031240431 in words is "two billion, thirty-one million, two hundred forty thousand, four hundred thirty-one".