23522443431 has 32 divisors (see below), whose sum is σ = 34543454400. Its totient is φ = 14171351040.

The previous prime is 23522443409. The next prime is 23522443481. The reversal of 23522443431 is 13434422532.

It is not a de Polignac number, because 23522443431 - 2⁹ = 23522442919 is a prime.

It is a super-2 number, since 2×23522443431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23522443392 and 23522443401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23522443481) 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, 223765 + ... + 311633.

It is an arithmetic number, because the mean of its divisors is an integer number (1079482950).

Almost surely, 2^23522443431 is an apocalyptic number.

23522443431 is a deficient number, since it is larger than the sum of its proper divisors (11021010969).

23522443431 is a wasteful number, since it uses less digits than its factorization.

23522443431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88099.

The product of its digits is 69120, while the sum is 33.

Adding to 23522443431 its reverse (13434422532), we get a palindrome (36956865963).

The spelling of 23522443431 in words is "twenty-three billion, five hundred twenty-two million, four hundred forty-three thousand, four hundred thirty-one".