331311012131220 has 192 divisors, whose sum is σ = 1041556659655680. Its totient is φ = 78005218201600.

The previous prime is 331311012131119. The next prime is 331311012131237. The reversal of 331311012131220 is 22131210113133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48022461 + ... + 54486500.

It is an arithmetic number, because the mean of its divisors is an integer number (5424774269040).

Almost surely, 2^{331311012131220} is an apocalyptic number.

331311012131220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331311012131220 is an abundant number, since it is smaller than the sum of its proper divisors (710245647524460).

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

331311012131220 is a wasteful number, since it uses less digits than its factorization.

331311012131220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102509126 (or 102509124 counting only the distinct ones).

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

Adding to 331311012131220 its reverse (22131210113133), we get a palindrome (353442222244353).

The spelling of 331311012131220 in words is "three hundred thirty-one trillion, three hundred eleven billion, twelve million, one hundred thirty-one thousand, two hundred twenty".