121013120320120 has 64 divisors (see below), whose sum is σ = 329481100716480. Its totient is φ = 39049611933696.

The previous prime is 121013120320117. The next prime is 121013120320133. The reversal of 121013120320120 is 21023021310121.

It is a super-2 number, since 2×121013120320120² (a number of 29 digits) contains 22 as substring.

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, 12711457459 + ... + 12711466978.

It is an arithmetic number, because the mean of its divisors is an integer number (5148142198695).

Almost surely, 2^{121013120320120} is an apocalyptic number.

121013120320120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121013120320120 is an abundant number, since it is smaller than the sum of its proper divisors (208467980396360).

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

121013120320120 is a wasteful number, since it uses less digits than its factorization.

121013120320120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25422924472 (or 25422924468 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 121013120320120 its reverse (21023021310121), we get a palindrome (142036141630241).

Subtracting from 121013120320120 its reverse (21023021310121), we obtain a palindrome (99990099009999).

The spelling of 121013120320120 in words is "one hundred twenty-one trillion, thirteen billion, one hundred twenty million, three hundred twenty thousand, one hundred twenty".