121492473232 has 160 divisors (see below), whose sum is σ = 262274324480. Its totient is φ = 54175080960.

The previous prime is 121492473217. The next prime is 121492473239. The reversal of 121492473232 is 232374294121.

It is not an unprimeable number, because it can be changed into a prime (121492473239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 232298923 + ... + 232299445.

It is an arithmetic number, because the mean of its divisors is an integer number (1639214528).

Almost surely, 2^121492473232 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 121492473232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131137162240).

121492473232 is an abundant number, since it is smaller than the sum of its proper divisors (140781851248).

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

121492473232 is a wasteful number, since it uses less digits than its factorization.

121492473232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 895 counting only the distinct ones).

The product of its digits is 145152, while the sum is 40.

The spelling of 121492473232 in words is "one hundred twenty-one billion, four hundred ninety-two million, four hundred seventy-three thousand, two hundred thirty-two".