20023330311 has 12 divisors (see below), whose sum is σ = 29855575360. Its totient is φ = 12918277440.

The previous prime is 20023330309. The next prime is 20023330319. The reversal of 20023330311 is 11303332002.

20023330311 is a `hidden beast` number, since 2 + 0 + 0 + 23 + 330 + 311 = 666.

It is not a de Polignac number, because 20023330311 - 2¹ = 20023330309 is a prime.

It is a super-2 number, since 2×20023330311² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023330319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35883826 + ... + 35884383.

Almost surely, 2^20023330311 is an apocalyptic number.

20023330311 is a deficient number, since it is larger than the sum of its proper divisors (9832245049).

20023330311 is a wasteful number, since it uses less digits than its factorization.

20023330311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71768246 (or 71768243 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20023330311 its reverse (11303332002), we get a palindrome (31326662313).

The spelling of 20023330311 in words is "twenty billion, twenty-three million, three hundred thirty thousand, three hundred eleven".