20302323111 has 32 divisors (see below), whose sum is σ = 34564275200. Its totient is φ = 11537212320.

The previous prime is 20302323071. The next prime is 20302323163. The reversal of 20302323111 is 11132320302.

20302323111 is a `hidden beast` number, since 20 + 302 + 32 + 311 + 1 = 666.

It is not a de Polignac number, because 20302323111 - 2¹⁸ = 20302060967 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20302343111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262531 + ... + 330948.

It is an arithmetic number, because the mean of its divisors is an integer number (1080133600).

Almost surely, 2^20302323111 is an apocalyptic number.

20302323111 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20302323111 is a deficient number, since it is larger than the sum of its proper divisors (14261952089).

20302323111 is a wasteful number, since it uses less digits than its factorization.

20302323111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593676 (or 593670 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20302323111 its reverse (11132320302), we get a palindrome (31434643413).

The spelling of 20302323111 in words is "twenty billion, three hundred two million, three hundred twenty-three thousand, one hundred eleven".