23311223279 has 2 divisors, whose sum is σ = 23311223280. Its totient is φ = 23311223278.

The previous prime is 23311223267. The next prime is 23311223363. The reversal of 23311223279 is 97232211332.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23311223279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23311223209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11655611639 + 11655611640.

It is an arithmetic number, because the mean of its divisors is an integer number (11655611640).

Almost surely, 2^23311223279 is an apocalyptic number.

23311223279 is a deficient number, since it is larger than the sum of its proper divisors (1).

23311223279 is an equidigital number, since it uses as much as digits as its factorization.

23311223279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 35.

The spelling of 23311223279 in words is "twenty-three billion, three hundred eleven million, two hundred twenty-three thousand, two hundred seventy-nine".