13402204121 has 16 divisors (see below), whose sum is σ = 14435967744. Its totient is φ = 12409556544.

The previous prime is 13402204103. The next prime is 13402204129. The reversal of 13402204121 is 12140220431.

It is a cyclic number.

It is not a de Polignac number, because 13402204121 - 2³⁰ = 12328462297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13402204093 and 13402204102.

It is not an unprimeable number, because it can be changed into a prime (13402204129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127676 + ... + 207618.

It is an arithmetic number, because the mean of its divisors is an integer number (902247984).

Almost surely, 2^13402204121 is an apocalyptic number.

It is an amenable number.

13402204121 is a deficient number, since it is larger than the sum of its proper divisors (1033763623).

13402204121 is a wasteful number, since it uses less digits than its factorization.

13402204121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80200.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 13402204121 its reverse (12140220431), we get a palindrome (25542424552).

The spelling of 13402204121 in words is "thirteen billion, four hundred two million, two hundred four thousand, one hundred twenty-one".