13261232320053 has 16 divisors (see below), whose sum is σ = 18192695242176. Its totient is φ = 8587195295360.

The previous prime is 13261232320043. The next prime is 13261232320073. The reversal of 13261232320053 is 35002323216231.

It is a cyclic number.

It is not a de Polignac number, because 13261232320053 - 2²² = 13261228125749 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13261232319996 and 13261232320023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13261232320043) 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, 237449826 + ... + 237505667.

It is an arithmetic number, because the mean of its divisors is an integer number (1137043452636).

Almost surely, 2^{13261232320053} is an apocalyptic number.

It is an amenable number.

13261232320053 is a deficient number, since it is larger than the sum of its proper divisors (4931462922123).

13261232320053 is a wasteful number, since it uses less digits than its factorization.

13261232320053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 474955764.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 13261232320053 its reverse (35002323216231), we get a palindrome (48263555536284).

The spelling of 13261232320053 in words is "thirteen trillion, two hundred sixty-one billion, two hundred thirty-two million, three hundred twenty thousand, fifty-three".