121233231120 has 40 divisors (see below), whose sum is σ = 375823017216. Its totient is φ = 32328861568.

The previous prime is 121233231113. The next prime is 121233231139. The reversal of 121233231120 is 21132332121.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252568992 + ... + 252569471.

Almost surely, 2^121233231120 is an apocalyptic number.

121233231120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121233231120 is an abundant number, since it is smaller than the sum of its proper divisors (254589786096).

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

121233231120 is a wasteful number, since it uses less digits than its factorization.

121233231120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505138479 (or 505138473 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121233231120 its reverse (21132332121), we get a palindrome (142365563241).

The spelling of 121233231120 in words is "one hundred twenty-one billion, two hundred thirty-three million, two hundred thirty-one thousand, one hundred twenty".