121412242057653 has 10 divisors (see below), whose sum is σ = 181368904802294. Its totient is φ = 80941494705048.

The previous prime is 121412242057649. The next prime is 121412242057669. The reversal of 121412242057653 is 356750242214121.

121412242057653 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 1 + 2 + 2 + 4 + 20 + 576 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 108614894891409 + 12797347166244 = 10421847^2 + 3577338^2 .

It is not a de Polignac number, because 121412242057653 - 2² = 121412242057649 is a prime.

It is a super-2 number, since 2×121412242057653² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 121412242057599 and 121412242057608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121412242050653) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 749458284226 + ... + 749458284387.

Almost surely, 2^{121412242057653} is an apocalyptic number.

It is an amenable number.

121412242057653 is a deficient number, since it is larger than the sum of its proper divisors (59956662744641).

121412242057653 is an equidigital number, since it uses as much as digits as its factorization.

121412242057653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1498916568625 (or 1498916568616 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 45.

The spelling of 121412242057653 in words is "one hundred twenty-one trillion, four hundred twelve billion, two hundred forty-two million, fifty-seven thousand, six hundred fifty-three".