20323202311 has 4 divisors (see below), whose sum is σ = 20656369624. Its totient is φ = 19990035000.

The previous prime is 20323202299. The next prime is 20323202329. The reversal of 20323202311 is 11320232302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20323202311 - 2¹⁹ = 20322678023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323202111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166583565 + ... + 166583686.

It is an arithmetic number, because the mean of its divisors is an integer number (5164092406).

Almost surely, 2^20323202311 is an apocalyptic number.

20323202311 is a deficient number, since it is larger than the sum of its proper divisors (333167313).

20323202311 is an equidigital number, since it uses as much as digits as its factorization.

20323202311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333167312.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20323202311 its reverse (11320232302), we get a palindrome (31643434613).

The spelling of 20323202311 in words is "twenty billion, three hundred twenty-three million, two hundred two thousand, three hundred eleven".