331121100000 has 144 divisors (see below), whose sum is σ = 1086422558256. Its totient is φ = 88298880000.

The previous prime is 331121099963. The next prime is 331121100047. The reversal of 331121100000 is 1121133.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 251869 + ... + 851868.

It is an arithmetic number, because the mean of its divisors is an integer number (7544601099).

Almost surely, 2^331121100000 is an apocalyptic number.

331121100000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

331121100000 is an abundant number, since it is smaller than the sum of its proper divisors (755301458256).

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

331121100000 is an equidigital number, since it uses as much as digits as its factorization.

331121100000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103775 (or 1103747 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 331121100000 its reverse (1121133), we get a palindrome (331122221133).

The spelling of 331121100000 in words is "three hundred thirty-one billion, one hundred twenty-one million, one hundred thousand".