121340420432 has 60 divisors (see below), whose sum is σ = 295328576928. Its totient is φ = 47275483200.

The previous prime is 121340420407. The next prime is 121340420477. The reversal of 121340420432 is 234024043121.

It is a super-2 number, since 2×121340420432² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4463294 + ... + 4490397.

Almost surely, 2^121340420432 is an apocalyptic number.

It is an amenable number.

121340420432 is an abundant number, since it is smaller than the sum of its proper divisors (173988156496).

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

121340420432 is a wasteful number, since it uses less digits than its factorization.

121340420432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8953728 (or 8953711 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 121340420432 its reverse (234024043121), we get a palindrome (355364463553).

The spelling of 121340420432 in words is "one hundred twenty-one billion, three hundred forty million, four hundred twenty thousand, four hundred thirty-two".