13426325121 has 16 divisors (see below), whose sum is σ = 19550266560. Its totient is φ = 8128389120.

The previous prime is 13426325111. The next prime is 13426325123. The reversal of 13426325121 is 12152362431.

It is not a de Polignac number, because 13426325121 - 2¹¹ = 13426323073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13426325123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188320 + ... + 249633.

It is an arithmetic number, because the mean of its divisors is an integer number (1221891660).

Almost surely, 2^13426325121 is an apocalyptic number.

13426325121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13426325121 is a deficient number, since it is larger than the sum of its proper divisors (6123941439).

13426325121 is a wasteful number, since it uses less digits than its factorization.

13426325121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438896.

The product of its digits is 8640, while the sum is 30.

Adding to 13426325121 its reverse (12152362431), we get a palindrome (25578687552).

The spelling of 13426325121 in words is "thirteen billion, four hundred twenty-six million, three hundred twenty-five thousand, one hundred twenty-one".