13606510121 has 4 divisors (see below), whose sum is σ = 13619708544. Its totient is φ = 13593311700.

The previous prime is 13606510097. The next prime is 13606510207. The reversal of 13606510121 is 12101560631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12101560631 = 181 ⋅66859451.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13606510121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13606515121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6597665 + ... + 6599726.

It is an arithmetic number, because the mean of its divisors is an integer number (3404927136).

Almost surely, 2^13606510121 is an apocalyptic number.

It is an amenable number.

13606510121 is a deficient number, since it is larger than the sum of its proper divisors (13198423).

13606510121 is a wasteful number, since it uses less digits than its factorization.

13606510121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13198422.

The product of its (nonzero) digits is 1080, while the sum is 26.

The spelling of 13606510121 in words is "thirteen billion, six hundred six million, five hundred ten thousand, one hundred twenty-one".