20323293911 has 2 divisors, whose sum is σ = 20323293912. Its totient is φ = 20323293910.

The previous prime is 20323293901. The next prime is 20323293953. The reversal of 20323293911 is 11939232302.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20323293911 - 2⁶ = 20323293847 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20323293901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10161646955 + 10161646956.

It is an arithmetic number, because the mean of its divisors is an integer number (10161646956).

Almost surely, 2^20323293911 is an apocalyptic number.

20323293911 is a deficient number, since it is larger than the sum of its proper divisors (1).

20323293911 is an equidigital number, since it uses as much as digits as its factorization.

20323293911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 35.

The spelling of 20323293911 in words is "twenty billion, three hundred twenty-three million, two hundred ninety-three thousand, nine hundred eleven".