231514034521220 has 24 divisors (see below), whose sum is σ = 530377606358208. Its totient is φ = 84186921644000.

The previous prime is 231514034521207. The next prime is 231514034521261. The reversal of 231514034521220 is 22125430415132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526168260056 + ... + 526168260495.

It is an arithmetic number, because the mean of its divisors is an integer number (22099066931592).

Almost surely, 2^{231514034521220} is an apocalyptic number.

231514034521220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231514034521220 is an abundant number, since it is smaller than the sum of its proper divisors (298863571836988).

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

231514034521220 is a wasteful number, since it uses less digits than its factorization.

231514034521220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052336520571 (or 1052336520569 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 231514034521220 its reverse (22125430415132), we get a palindrome (253639464936352).

The spelling of 231514034521220 in words is "two hundred thirty-one trillion, five hundred fourteen billion, thirty-four million, five hundred twenty-one thousand, two hundred twenty".