131430232232 has 16 divisors (see below), whose sum is σ = 265387969140. Its totient is φ = 60660107136.

The previous prime is 131430232211. The next prime is 131430232291. The reversal of 131430232232 is 232232034131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 128626953316 + 2803278916 = 358646^2 + 52946^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 631876013 + ... + 631876220.

Almost surely, 2^131430232232 is an apocalyptic number.

It is an amenable number.

131430232232 is an abundant number, since it is smaller than the sum of its proper divisors (133957736908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131430232232 is a wasteful number, since it uses less digits than its factorization.

131430232232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263752252 (or 1263752248 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 131430232232 its reverse (232232034131), we get a palindrome (363662266363).

The spelling of 131430232232 in words is "one hundred thirty-one billion, four hundred thirty million, two hundred thirty-two thousand, two hundred thirty-two".