12561053234053 has 16 divisors (see below), whose sum is σ = 13014220570560. Its totient is φ = 12115929805056.

The previous prime is 12561053234021. The next prime is 12561053234089. The reversal of 12561053234053 is 35043235016521.

It is a cyclic number.

It is not a de Polignac number, because 12561053234053 - 2⁵ = 12561053234021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12561053233997 and 12561053234015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12561053234453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2847588 + ... + 5764621.

It is an arithmetic number, because the mean of its divisors is an integer number (813388785660).

Almost surely, 2^{12561053234053} is an apocalyptic number.

It is an amenable number.

12561053234053 is a deficient number, since it is larger than the sum of its proper divisors (453167336507).

12561053234053 is a wasteful number, since it uses less digits than its factorization.

12561053234053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8612676.

The product of its (nonzero) digits is 324000, while the sum is 40.

The spelling of 12561053234053 in words is "twelve trillion, five hundred sixty-one billion, fifty-three million, two hundred thirty-four thousand, fifty-three".