331132313112220 has 48 divisors (see below), whose sum is σ = 696146064445440. Its totient is φ = 132306604911936.

The previous prime is 331132313112193. The next prime is 331132313112247. The reversal of 331132313112220 is 22211313231133.

It is an interprime number because it is at equal distance from previous prime (331132313112193) and next prime (331132313112247).

It is a congruent number.

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, 1542029779 + ... + 1542244501.

It is an arithmetic number, because the mean of its divisors is an integer number (14503043009280).

Almost surely, 2^{331132313112220} is an apocalyptic number.

It is an amenable number.

331132313112220 is an abundant number, since it is smaller than the sum of its proper divisors (365013751333220).

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

331132313112220 is a wasteful number, since it uses less digits than its factorization.

331132313112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299554 (or 299552 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 331132313112220 its reverse (22211313231133), we get a palindrome (353343626343353).

The spelling of 331132313112220 in words is "three hundred thirty-one trillion, one hundred thirty-two billion, three hundred thirteen million, one hundred twelve thousand, two hundred twenty".