13206942251 has 4 divisors (see below), whose sum is σ = 13208554632. Its totient is φ = 13205329872.

The previous prime is 13206942223. The next prime is 13206942253. The reversal of 13206942251 is 15224960231.

13206942251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15224960231 = 13 ⋅1171150787.

It is a cyclic number.

It is not a de Polignac number, because 13206942251 - 2¹⁸ = 13206680107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13206942253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793841 + ... + 810306.

It is an arithmetic number, because the mean of its divisors is an integer number (3302138658).

Almost surely, 2^13206942251 is an apocalyptic number.

13206942251 is a deficient number, since it is larger than the sum of its proper divisors (1612381).

13206942251 is an equidigital number, since it uses as much as digits as its factorization.

13206942251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612380.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 13206942251 in words is "thirteen billion, two hundred six million, nine hundred forty-two thousand, two hundred fifty-one".