231001323201 has 64 divisors (see below), whose sum is σ = 406536192000. Its totient is φ = 128058719040.

The previous prime is 231001323191. The next prime is 231001323251. The reversal of 231001323201 is 102323100132.

231001323201 is a `hidden beast` number, since 2 + 310 + 0 + 1 + 32 + 320 + 1 = 666.

It is not a de Polignac number, because 231001323201 - 2⁵ = 231001323169 is a prime.

It is a super-2 number, since 2×231001323201² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231001323251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 542145 + ... + 869438.

It is an arithmetic number, because the mean of its divisors is an integer number (6352128000).

Almost surely, 2^231001323201 is an apocalyptic number.

It is an amenable number.

231001323201 is a deficient number, since it is larger than the sum of its proper divisors (175534868799).

231001323201 is a wasteful number, since it uses less digits than its factorization.

231001323201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1411651 (or 1411645 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 231001323201 its reverse (102323100132), we get a palindrome (333324423333).

The spelling of 231001323201 in words is "two hundred thirty-one billion, one million, three hundred twenty-three thousand, two hundred one".