121534235432 has 32 divisors (see below), whose sum is σ = 230110657920. Its totient is φ = 60171909120.

The previous prime is 121534235429. The next prime is 121534235443. The reversal of 121534235432 is 234532435121.

It is a junction number, because it is equal to n+sod(n) for n = 121534235392 and 121534235401.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1926632 + ... + 1988712.

It is an arithmetic number, because the mean of its divisors is an integer number (7190958060).

Almost surely, 2^121534235432 is an apocalyptic number.

It is an amenable number.

121534235432 is a deficient number, since it is larger than the sum of its proper divisors (108576422488).

121534235432 is a wasteful number, since it uses less digits than its factorization.

121534235432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64481 (or 64477 counting only the distinct ones).

The product of its digits is 86400, while the sum is 35.

The spelling of 121534235432 in words is "one hundred twenty-one billion, five hundred thirty-four million, two hundred thirty-five thousand, four hundred thirty-two".