231001023320311 has 16 divisors (see below), whose sum is σ = 243532296016128. Its totient is φ = 218677114656000.

The previous prime is 231001023320303. The next prime is 231001023320321. The reversal of 231001023320311 is 113023320100132.

It is a cyclic number.

It is not a de Polignac number, because 231001023320311 - 2³ = 231001023320303 is a prime.

It is a super-2 number, since 2×231001023320311² (a number of 30 digits) 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 (231001023320321) 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, 214377036 + ... + 215451886.

It is an arithmetic number, because the mean of its divisors is an integer number (15220768501008).

Almost surely, 2^{231001023320311} is an apocalyptic number.

231001023320311 is a deficient number, since it is larger than the sum of its proper divisors (12531272695817).

231001023320311 is a wasteful number, since it uses less digits than its factorization.

231001023320311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1171302.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231001023320311 its reverse (113023320100132), we get a palindrome (344024343420443).

The spelling of 231001023320311 in words is "two hundred thirty-one trillion, one billion, twenty-three million, three hundred twenty thousand, three hundred eleven".