13256642141 has 2 divisors, whose sum is σ = 13256642142. Its totient is φ = 13256642140.

The previous prime is 13256642117. The next prime is 13256642207. The reversal of 13256642141 is 14124665231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10850347225 + 2406294916 = 104165^2 + 49054^2 .

It is a cyclic number.

It is not a de Polignac number, because 13256642141 - 2¹⁰ = 13256641117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13256642341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6628321070 + 6628321071.

It is an arithmetic number, because the mean of its divisors is an integer number (6628321071).

Almost surely, 2^13256642141 is an apocalyptic number.

It is an amenable number.

13256642141 is a deficient number, since it is larger than the sum of its proper divisors (1).

13256642141 is an equidigital number, since it uses as much as digits as its factorization.

13256642141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

It can be divided in two parts, 1325 and 6642141, that added together give a palindrome (6643466).

The spelling of 13256642141 in words is "thirteen billion, two hundred fifty-six million, six hundred forty-two thousand, one hundred forty-one".