13679286121 has 2 divisors, whose sum is σ = 13679286122. Its totient is φ = 13679286120.

The previous prime is 13679286107. The next prime is 13679286157. The reversal of 13679286121 is 12168297631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13417978896 + 261307225 = 115836^2 + 16165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13679286121 is a prime.

It is not a weakly prime, because it can be changed into another prime (13679286421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6839643060 + 6839643061.

It is an arithmetic number, because the mean of its divisors is an integer number (6839643061).

Almost surely, 2^13679286121 is an apocalyptic number.

It is an amenable number.

13679286121 is a deficient number, since it is larger than the sum of its proper divisors (1).

13679286121 is an equidigital number, since it uses as much as digits as its factorization.

13679286121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 46.

The spelling of 13679286121 in words is "thirteen billion, six hundred seventy-nine million, two hundred eighty-six thousand, one hundred twenty-one".