23213320279 has 2 divisors, whose sum is σ = 23213320280. Its totient is φ = 23213320278.

The previous prime is 23213320219. The next prime is 23213320363. The reversal of 23213320279 is 97202331232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23213320279 - 2¹¹ = 23213318231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23213320219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11606660139 + 11606660140.

It is an arithmetic number, because the mean of its divisors is an integer number (11606660140).

Almost surely, 2^23213320279 is an apocalyptic number.

23213320279 is a deficient number, since it is larger than the sum of its proper divisors (1).

23213320279 is an equidigital number, since it uses as much as digits as its factorization.

23213320279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27216, while the sum is 34.

The spelling of 23213320279 in words is "twenty-three billion, two hundred thirteen million, three hundred twenty thousand, two hundred seventy-nine".