100331231211020 has 24 divisors (see below), whose sum is σ = 223089443517024. Its totient is φ = 37771757632256.

The previous prime is 100331231210963. The next prime is 100331231211097. The reversal of 100331231211020 is 20112132133001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 100331231210983 and 100331231211001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147545927912 + ... + 147545928591.

It is an arithmetic number, because the mean of its divisors is an integer number (9295393479876).

Almost surely, 2^{100331231211020} is an apocalyptic number.

100331231211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100331231211020 is an abundant number, since it is smaller than the sum of its proper divisors (122758212306004).

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

100331231211020 is a wasteful number, since it uses less digits than its factorization.

100331231211020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295091856529 (or 295091856527 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 100331231211020 its reverse (20112132133001), we get a palindrome (120443363344021).

The spelling of 100331231211020 in words is "one hundred trillion, three hundred thirty-one billion, two hundred thirty-one million, two hundred eleven thousand, twenty".