23202201231 has 24 divisors (see below), whose sum is σ = 36568037376. Its totient is φ = 14059250640.

The previous prime is 23202201223. The next prime is 23202201287. The reversal of 23202201231 is 13210220232.

23202201231 is a `hidden beast` number, since 2 + 320 + 220 + 123 + 1 = 666.

It is not a de Polignac number, because 23202201231 - 2³ = 23202201223 is a prime.

It is a super-2 number, since 2×23202201231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23202201031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 578866 + ... + 617648.

It is an arithmetic number, because the mean of its divisors is an integer number (1523668224).

Almost surely, 2^23202201231 is an apocalyptic number.

23202201231 is a deficient number, since it is larger than the sum of its proper divisors (13365836145).

23202201231 is a wasteful number, since it uses less digits than its factorization.

23202201231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44843 (or 44840 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23202201231 its reverse (13210220232), we get a palindrome (36412421463).

The spelling of 23202201231 in words is "twenty-three billion, two hundred two million, two hundred one thousand, two hundred thirty-one".