13122221310311 has 4 divisors (see below), whose sum is σ = 13122378026832. Its totient is φ = 13122064593792.

The previous prime is 13122221310299. The next prime is 13122221310323. The reversal of 13122221310311 is 11301312222131.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (13122221310299) and next prime (13122221310323).

It is a cyclic number.

It is not a de Polignac number, because 13122221310311 - 2³⁴ = 13105041441127 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 (13122221510311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78232595 + ... + 78400148.

It is an arithmetic number, because the mean of its divisors is an integer number (3280594506708).

Almost surely, 2^{13122221310311} is an apocalyptic number.

13122221310311 is a deficient number, since it is larger than the sum of its proper divisors (156716521).

13122221310311 is an equidigital number, since it uses as much as digits as its factorization.

13122221310311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156716520.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 13122221310311 its reverse (11301312222131), we get a palindrome (24423533532442).

The spelling of 13122221310311 in words is "thirteen trillion, one hundred twenty-two billion, two hundred twenty-one million, three hundred ten thousand, three hundred eleven".