20314472309 has 2 divisors, whose sum is σ = 20314472310. Its totient is φ = 20314472308.

The previous prime is 20314472287. The next prime is 20314472323. The reversal of 20314472309 is 90327441302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15806021284 + 4508451025 = 125722^2 + 67145^2 .

It is a cyclic number.

It is not a de Polignac number, because 20314472309 - 2²⁰ = 20313423733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20314478309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10157236154 + 10157236155.

It is an arithmetic number, because the mean of its divisors is an integer number (10157236155).

Almost surely, 2^20314472309 is an apocalyptic number.

It is an amenable number.

20314472309 is a deficient number, since it is larger than the sum of its proper divisors (1).

20314472309 is an equidigital number, since it uses as much as digits as its factorization.

20314472309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 20314472309 in words is "twenty billion, three hundred fourteen million, four hundred seventy-two thousand, three hundred nine".