13111322343151 has 4 divisors (see below), whose sum is σ = 13111556961232. Its totient is φ = 13111087725072.

The previous prime is 13111322343137. The next prime is 13111322343157. The reversal of 13111322343151 is 15134322311131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13111322343151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13111322343157) 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, 117225195 + ... + 117336988.

It is an arithmetic number, because the mean of its divisors is an integer number (3277889240308).

Almost surely, 2^{13111322343151} is an apocalyptic number.

13111322343151 is a deficient number, since it is larger than the sum of its proper divisors (234618081).

13111322343151 is an equidigital number, since it uses as much as digits as its factorization.

13111322343151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234618080.

The product of its digits is 6480, while the sum is 31.

Adding to 13111322343151 its reverse (15134322311131), we get a palindrome (28245644654282).

The spelling of 13111322343151 in words is "thirteen trillion, one hundred eleven billion, three hundred twenty-two million, three hundred forty-three thousand, one hundred fifty-one".