231323333120 has 160 divisors (see below), whose sum is σ = 606254875776. Its totient is φ = 83950796800.

The previous prime is 231323333119. The next prime is 231323333141. The reversal of 231323333120 is 21333323132.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (160).

It is a self number, because there is not a number n which added to its sum of digits gives 231323333120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14663477 + ... + 14679243.

Almost surely, 2^231323333120 is an apocalyptic number.

231323333120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231323333120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303127437888).

231323333120 is an abundant number, since it is smaller than the sum of its proper divisors (374931542656).

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

231323333120 is a wasteful number, since it uses less digits than its factorization.

231323333120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16322 (or 16306 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 26.

Adding to 231323333120 its reverse (21333323132), we get a palindrome (252656656252).

The spelling of 231323333120 in words is "two hundred thirty-one billion, three hundred twenty-three million, three hundred thirty-three thousand, one hundred twenty".