231121322232 has 64 divisors (see below), whose sum is σ = 612264834720. Its totient is φ = 72452579328.

The previous prime is 231121322207. The next prime is 231121322239. The reversal of 231121322232 is 232223121132.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231121322239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 310798 + ... + 747554.

Almost surely, 2^231121322232 is an apocalyptic number.

It is an amenable number.

231121322232 is an abundant number, since it is smaller than the sum of its proper divisors (381143512488).

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

231121322232 is a wasteful number, since it uses less digits than its factorization.

231121322232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438080 (or 438076 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

Adding to 231121322232 its reverse (232223121132), we get a palindrome (463344443364).

The spelling of 231121322232 in words is "two hundred thirty-one billion, one hundred twenty-one million, three hundred twenty-two thousand, two hundred thirty-two".