100331311231020 has 96 divisors (see below), whose sum is σ = 281223625536000. Its totient is φ = 26726834041344.

The previous prime is 100331311231013. The next prime is 100331311231079. The reversal of 100331311231020 is 20132113133001.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 981673881 + ... + 981776079.

It is an arithmetic number, because the mean of its divisors is an integer number (2929412766000).

Almost surely, 2^{100331311231020} is an apocalyptic number.

100331311231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100331311231020 is an abundant number, since it is smaller than the sum of its proper divisors (180892314304980).

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

100331311231020 is a wasteful number, since it uses less digits than its factorization.

100331311231020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119287 (or 119285 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 100331311231020 its reverse (20132113133001), we get a palindrome (120463424364021).

The spelling of 100331311231020 in words is "one hundred trillion, three hundred thirty-one billion, three hundred eleven million, two hundred thirty-one thousand, twenty".