121112313020 has 48 divisors (see below), whose sum is σ = 267483783168. Its totient is φ = 45973730880.

The previous prime is 121112313011. The next prime is 121112313041. The reversal of 121112313020 is 20313211121.

It is a self number, because there is not a number n which added to its sum of digits gives 121112313020.

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, 978146 + ... + 1094985.

It is an arithmetic number, because the mean of its divisors is an integer number (5572578816).

Almost surely, 2^121112313020 is an apocalyptic number.

121112313020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121112313020 is an abundant number, since it is smaller than the sum of its proper divisors (146371470148).

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

121112313020 is a wasteful number, since it uses less digits than its factorization.

121112313020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073290 (or 2073288 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 121112313020 its reverse (20313211121), we get a palindrome (141425524141).

The spelling of 121112313020 in words is "one hundred twenty-one billion, one hundred twelve million, three hundred thirteen thousand, twenty".