23431231132 has 6 divisors (see below), whose sum is σ = 41004654488. Its totient is φ = 11715615564.

The previous prime is 23431231127. The next prime is 23431231139. The reversal of 23431231132 is 23113213432.

It is a super-2 number, since 2×23431231132² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23431231097 and 23431231106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23431231139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2928903888 + ... + 2928903895.

Almost surely, 2^23431231132 is an apocalyptic number.

It is an amenable number.

23431231132 is a deficient number, since it is larger than the sum of its proper divisors (17573423356).

23431231132 is a wasteful number, since it uses less digits than its factorization.

23431231132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5857807787 (or 5857807785 counting only the distinct ones).

The product of its digits is 2592, while the sum is 25.

Adding to 23431231132 its reverse (23113213432), we get a palindrome (46544444564).

The spelling of 23431231132 in words is "twenty-three billion, four hundred thirty-one million, two hundred thirty-one thousand, one hundred thirty-two".