121132331120 has 40 divisors (see below), whose sum is σ = 286249610400. Its totient is φ = 47658620160.

The previous prime is 121132331087. The next prime is 121132331129. The reversal of 121132331120 is 21133231121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

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 = 121132331092 and 121132331101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121132331129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12406220 + ... + 12415979.

It is an arithmetic number, because the mean of its divisors is an integer number (7156240260).

Almost surely, 2^121132331120 is an apocalyptic number.

121132331120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121132331120 is an abundant number, since it is smaller than the sum of its proper divisors (165117279280).

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

121132331120 is a wasteful number, since it uses less digits than its factorization.

121132331120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24822273 (or 24822267 counting only the distinct ones).

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

Adding to 121132331120 its reverse (21133231121), we get a palindrome (142265562241).

Subtracting from 121132331120 its reverse (21133231121), we obtain a palindrome (99999099999).

The spelling of 121132331120 in words is "one hundred twenty-one billion, one hundred thirty-two million, three hundred thirty-one thousand, one hundred twenty".