13425542511121 has 4 divisors (see below), whose sum is σ = 14458276550452. Its totient is φ = 12392808471792.

The previous prime is 13425542511113. The next prime is 13425542511131. The reversal of 13425542511121 is 12111524552431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4990148370496 + 8435394140625 = 2233864^2 + 2904375^2 .

It is a cyclic number.

It is not a de Polignac number, because 13425542511121 - 2³ = 13425542511113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13425542511131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516367019646 + ... + 516367019671.

It is an arithmetic number, because the mean of its divisors is an integer number (3614569137613).

Almost surely, 2^{13425542511121} is an apocalyptic number.

It is an amenable number.

13425542511121 is a deficient number, since it is larger than the sum of its proper divisors (1032734039331).

13425542511121 is a wasteful number, since it uses less digits than its factorization.

13425542511121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1032734039330.

The product of its digits is 48000, while the sum is 37.

The spelling of 13425542511121 in words is "thirteen trillion, four hundred twenty-five billion, five hundred forty-two million, five hundred eleven thousand, one hundred twenty-one".