23320201131 has 8 divisors (see below), whose sum is σ = 34548446160. Its totient is φ = 15546800736.

The previous prime is 23320201123. The next prime is 23320201169. The reversal of 23320201131 is 13110202332.

23320201131 is a `hidden beast` number, since 2 + 332 + 0 + 201 + 131 = 666.

It is not a de Polignac number, because 23320201131 - 2³ = 23320201123 is a prime.

It is a super-2 number, since 2×23320201131² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23320201631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431855550 + ... + 431855603.

It is an arithmetic number, because the mean of its divisors is an integer number (4318555770).

Almost surely, 2^23320201131 is an apocalyptic number.

23320201131 is a deficient number, since it is larger than the sum of its proper divisors (11228245029).

23320201131 is an equidigital number, since it uses as much as digits as its factorization.

23320201131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 863711162 (or 863711156 counting only the distinct ones).

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

Adding to 23320201131 its reverse (13110202332), we get a palindrome (36430403463).

The spelling of 23320201131 in words is "twenty-three billion, three hundred twenty million, two hundred one thousand, one hundred thirty-one".