121752434412 has 36 divisors (see below), whose sum is σ = 351729255696. Its totient is φ = 34786409760.

The previous prime is 121752434393. The next prime is 121752434413. The reversal of 121752434412 is 214434257121.

121752434412 is a `hidden beast` number, since 1 + 2 + 175 + 2 + 43 + 441 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (121752434413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241572039 + ... + 241572542.

Almost surely, 2^121752434412 is an apocalyptic number.

121752434412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121752434412 is an abundant number, since it is smaller than the sum of its proper divisors (229976821284).

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

121752434412 is a wasteful number, since it uses less digits than its factorization.

121752434412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 483144598 (or 483144593 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The spelling of 121752434412 in words is "one hundred twenty-one billion, seven hundred fifty-two million, four hundred thirty-four thousand, four hundred twelve".