20313322279 has 2 divisors, whose sum is σ = 20313322280. Its totient is φ = 20313322278.

The previous prime is 20313322261. The next prime is 20313322319. The reversal of 20313322279 is 97222331302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20313322279 - 2¹¹ = 20313320231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20313322259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156661139 + 10156661140.

It is an arithmetic number, because the mean of its divisors is an integer number (10156661140).

Almost surely, 2^20313322279 is an apocalyptic number.

20313322279 is a deficient number, since it is larger than the sum of its proper divisors (1).

20313322279 is an equidigital number, since it uses as much as digits as its factorization.

20313322279 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 20313322279 in words is "twenty billion, three hundred thirteen million, three hundred twenty-two thousand, two hundred seventy-nine".