13356042251 has 4 divisors (see below), whose sum is σ = 13457996904. Its totient is φ = 13254087600.

The previous prime is 13356042233. The next prime is 13356042253. The reversal of 13356042251 is 15224065331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15224065331 = 82421 ⋅184711.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13356042251 is a prime.

It is a super-2 number, since 2×13356042251² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13356042253) 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, 50977130 + ... + 50977391.

It is an arithmetic number, because the mean of its divisors is an integer number (3364499226).

Almost surely, 2^13356042251 is an apocalyptic number.

13356042251 is a deficient number, since it is larger than the sum of its proper divisors (101954653).

13356042251 is a wasteful number, since it uses less digits than its factorization.

13356042251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101954652.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 13356042251 in words is "thirteen billion, three hundred fifty-six million, forty-two thousand, two hundred fifty-one".