231233230121331 has 32 divisors (see below), whose sum is σ = 311915632508928. Its totient is φ = 152360194165920.

The previous prime is 231233230121263. The next prime is 231233230121347. The reversal of 231233230121331 is 133121032332132.

231233230121331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 231233230121331 - 2²¹ = 231233228024179 is a prime.

It is a super-2 number, since 2×231233230121331² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231233930121331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 288557986 + ... + 289358216.

It is an arithmetic number, because the mean of its divisors is an integer number (9747363515904).

Almost surely, 2^{231233230121331} is an apocalyptic number.

231233230121331 is a deficient number, since it is larger than the sum of its proper divisors (80682402387597).

231233230121331 is a wasteful number, since it uses less digits than its factorization.

231233230121331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802431.

The product of its (nonzero) digits is 11664, while the sum is 30.

Adding to 231233230121331 its reverse (133121032332132), we get a palindrome (364354262453463).

The spelling of 231233230121331 in words is "two hundred thirty-one trillion, two hundred thirty-three billion, two hundred thirty million, one hundred twenty-one thousand, three hundred thirty-one".