231024221001 has 24 divisors (see below), whose sum is σ = 381504362304. Its totient is φ = 131968478880.

The previous prime is 231024220993. The next prime is 231024221033. The reversal of 231024221001 is 100122420132.

It is a happy number.

231024221001 is a `hidden beast` number, since 231 + 0 + 2 + 422 + 10 + 0 + 1 = 666.

It is not a de Polignac number, because 231024221001 - 2³ = 231024220993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (231024231001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 444795 + ... + 812336.

It is an arithmetic number, because the mean of its divisors is an integer number (15896015096).

Almost surely, 2^231024221001 is an apocalyptic number.

231024221001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

231024221001 is a deficient number, since it is larger than the sum of its proper divisors (150480141303).

231024221001 is a wasteful number, since it uses less digits than its factorization.

231024221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1260061 (or 1260058 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 231024221001 its reverse (100122420132), we get a palindrome (331146641133).

The spelling of 231024221001 in words is "two hundred thirty-one billion, twenty-four million, two hundred twenty-one thousand, one".