231313331342120 has 32 divisors (see below), whose sum is σ = 533149019804520. Its totient is φ = 90268617108480.

The previous prime is 231313331342089. The next prime is 231313331342153. The reversal of 231313331342120 is 21243133313132.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 167862133770244 + 63451197571876 = 12956162^2 + 7965626^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70522355477 + ... + 70522358756.

Almost surely, 2^{231313331342120} is an apocalyptic number.

231313331342120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231313331342120 is an abundant number, since it is smaller than the sum of its proper divisors (301835688462400).

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

231313331342120 is a wasteful number, since it uses less digits than its factorization.

231313331342120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141044714285 (or 141044714281 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 32.

Adding to 231313331342120 its reverse (21243133313132), we get a palindrome (252556464655252).

The spelling of 231313331342120 in words is "two hundred thirty-one trillion, three hundred thirteen billion, three hundred thirty-one million, three hundred forty-two thousand, one hundred twenty".