331131120121230 has 64 divisors (see below), whose sum is σ = 933650822619648. Its totient is φ = 74099271634560.

The previous prime is 331131120121201. The next prime is 331131120121237. The reversal of 331131120121230 is 32121021131133.

It is a self number, because there is not a number n which added to its sum of digits gives 331131120121230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331131120121237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 38593366354 + ... + 38593374933.

It is an arithmetic number, because the mean of its divisors is an integer number (14588294103432).

Almost surely, 2^{331131120121230} is an apocalyptic number.

331131120121230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

331131120121230 is an abundant number, since it is smaller than the sum of its proper divisors (602519702498418).

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

331131120121230 is a wasteful number, since it uses less digits than its factorization.

331131120121230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77186741321.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 331131120121230 its reverse (32121021131133), we get a palindrome (363252141252363).

The spelling of 331131120121230 in words is "three hundred thirty-one trillion, one hundred thirty-one billion, one hundred twenty million, one hundred twenty-one thousand, two hundred thirty".