121233243120 has 80 divisors (see below), whose sum is σ = 409988794752. Its totient is φ = 29389876480.

The previous prime is 121233243113. The next prime is 121233243137. The reversal of 121233243120 is 21342332121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 22958202 + ... + 22963481.

Almost surely, 2^121233243120 is an apocalyptic number.

121233243120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121233243120 is an abundant number, since it is smaller than the sum of its proper divisors (288755551632).

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

121233243120 is a wasteful number, since it uses less digits than its factorization.

121233243120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45921710 (or 45921704 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 121233243120 its reverse (21342332121), we get a palindrome (142575575241).

The spelling of 121233243120 in words is "one hundred twenty-one billion, two hundred thirty-three million, two hundred forty-three thousand, one hundred twenty".