121534235433 has 32 divisors (see below), whose sum is σ = 204106089600. Its totient is φ = 70853963328.

The previous prime is 121534235429. The next prime is 121534235443. The reversal of 121534235433 is 334532435121.

121534235433 is a `hidden beast` number, since 1 + 2 + 153 + 42 + 35 + 433 = 666.

It is not a de Polignac number, because 121534235433 - 2² = 121534235429 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121534235413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9105210 + ... + 9118547.

It is an arithmetic number, because the mean of its divisors is an integer number (6378315300).

Almost surely, 2^121534235433 is an apocalyptic number.

121534235433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

121534235433 is a deficient number, since it is larger than the sum of its proper divisors (82571854167).

121534235433 is a wasteful number, since it uses less digits than its factorization.

121534235433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18223798 (or 18223792 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

The spelling of 121534235433 in words is "one hundred twenty-one billion, five hundred thirty-four million, two hundred thirty-five thousand, four hundred thirty-three".