13111220279 has 2 divisors, whose sum is σ = 13111220280. Its totient is φ = 13111220278.

The previous prime is 13111220263. The next prime is 13111220323. The reversal of 13111220279 is 97202211131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13111220279 - 2⁴ = 13111220263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13111220179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555610139 + 6555610140.

It is an arithmetic number, because the mean of its divisors is an integer number (6555610140).

Almost surely, 2^13111220279 is an apocalyptic number.

13111220279 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111220279 is an equidigital number, since it uses as much as digits as its factorization.

13111220279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 13111220279 in words is "thirteen billion, one hundred eleven million, two hundred twenty thousand, two hundred seventy-nine".