121455265232 has 80 divisors (see below), whose sum is σ = 276505814400. Its totient is φ = 50590324224.

The previous prime is 121455265223. The next prime is 121455265237. The reversal of 121455265232 is 232562554121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121455265237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3908894 + ... + 3939842.

It is an arithmetic number, because the mean of its divisors is an integer number (3456322680).

Almost surely, 2^121455265232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121455265232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138252907200).

121455265232 is an abundant number, since it is smaller than the sum of its proper divisors (155050549168).

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

121455265232 is a wasteful number, since it uses less digits than its factorization.

121455265232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31948 (or 31942 counting only the distinct ones).

The product of its digits is 144000, while the sum is 38.

The spelling of 121455265232 in words is "one hundred twenty-one billion, four hundred fifty-five million, two hundred sixty-five thousand, two hundred thirty-two".