20313323323 has 2 divisors, whose sum is σ = 20313323324. Its totient is φ = 20313323322.

The previous prime is 20313323309. The next prime is 20313323353. The reversal of 20313323323 is 32332331302.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20313323323 is a prime.

It is a super-2 number, since 2×20313323323² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20313323353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10156661661 + 10156661662.

It is an arithmetic number, because the mean of its divisors is an integer number (10156661662).

Almost surely, 2^20313323323 is an apocalyptic number.

20313323323 is a deficient number, since it is larger than the sum of its proper divisors (1).

20313323323 is an equidigital number, since it uses as much as digits as its factorization.

20313323323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 25.

Adding to 20313323323 its reverse (32332331302), we get a palindrome (52645654625).

The spelling of 20313323323 in words is "twenty billion, three hundred thirteen million, three hundred twenty-three thousand, three hundred twenty-three".