23201222331 has 32 divisors (see below), whose sum is σ = 37888478208. Its totient is φ = 12338663040.

The previous prime is 23201222279. The next prime is 23201222333. The reversal of 23201222331 is 13322210232.

It is a happy number.

It is not a de Polignac number, because 23201222331 - 2¹⁷ = 23201091259 is a prime.

It is a super-2 number, since 2×23201222331² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 23201222298 and 23201222307.

It is not an unprimeable number, because it can be changed into a prime (23201222333) 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, 631260 + ... + 667001.

It is an arithmetic number, because the mean of its divisors is an integer number (1184014944).

Almost surely, 2^23201222331 is an apocalyptic number.

23201222331 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

23201222331 is a deficient number, since it is larger than the sum of its proper divisors (14687255877).

23201222331 is a wasteful number, since it uses less digits than its factorization.

23201222331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298331.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 23201222331 its reverse (13322210232), we get a palindrome (36523432563).

The spelling of 23201222331 in words is "twenty-three billion, two hundred one million, two hundred twenty-two thousand, three hundred thirty-one".