231001323331 has 16 divisors (see below), whose sum is σ = 246297139200. Its totient is φ = 216147922848.

The previous prime is 231001323313. The next prime is 231001323337. The reversal of 231001323331 is 133323100132.

It is not a de Polignac number, because 231001323331 - 2¹⁵ = 231001290563 is a prime.

It is a super-2 number, since 2×231001323331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231001323337) 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, 2140690 + ... + 2246008.

It is an arithmetic number, because the mean of its divisors is an integer number (15393571200).

Almost surely, 2^231001323331 is an apocalyptic number.

231001323331 is a deficient number, since it is larger than the sum of its proper divisors (15295815869).

231001323331 is a wasteful number, since it uses less digits than its factorization.

231001323331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107418.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 231001323331 its reverse (133323100132), we get a palindrome (364324423463).

It can be divided in two parts, 23100 and 1323331, that added together give a palindrome (1346431).

The spelling of 231001323331 in words is "two hundred thirty-one billion, one million, three hundred twenty-three thousand, three hundred thirty-one".