121502433432 has 64 divisors (see below), whose sum is σ = 309705327360. Its totient is φ = 39708656000.

The previous prime is 121502433419. The next prime is 121502433449. The reversal of 121502433432 is 234334205121.

It is a self number, because there is not a number n which added to its sum of digits gives 121502433432.

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, 1812757 + ... + 1878587.

It is an arithmetic number, because the mean of its divisors is an integer number (4839145740).

Almost surely, 2^121502433432 is an apocalyptic number.

121502433432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121502433432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (154852663680).

121502433432 is an abundant number, since it is smaller than the sum of its proper divisors (188202893928).

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

121502433432 is a wasteful number, since it uses less digits than its factorization.

121502433432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67344 (or 67340 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 121502433432 its reverse (234334205121), we get a palindrome (355836638553).

The spelling of 121502433432 in words is "one hundred twenty-one billion, five hundred two million, four hundred thirty-three thousand, four hundred thirty-two".