231031004244 has 24 divisors (see below), whose sum is σ = 539080348128. Its totient is φ = 77009191200.

The previous prime is 231031004219. The next prime is 231031004249. The reversal of 231031004244 is 442400130132.

It is a super-2 number, since 2×231031004244² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231031004249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1214394 + ... + 1391694.

It is an arithmetic number, because the mean of its divisors is an integer number (22461681172).

Almost surely, 2^231031004244 is an apocalyptic number.

It is an amenable number.

231031004244 is an abundant number, since it is smaller than the sum of its proper divisors (308049343884).

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

231031004244 is a wasteful number, since it uses less digits than its factorization.

231031004244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285895 (or 285893 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 231031004244 its reverse (442400130132), we get a palindrome (673431134376).

The spelling of 231031004244 in words is "two hundred thirty-one billion, thirty-one million, four thousand, two hundred forty-four".