20330211312 has 60 divisors (see below), whose sum is σ = 56907887920. Its totient is φ = 6775363584.

The previous prime is 20330211269. The next prime is 20330211323. The reversal of 20330211312 is 21311203302.

20330211312 is a `hidden beast` number, since 2 + 0 + 330 + 21 + 1 + 312 = 666.

It is a super-2 number, since 2×20330211312² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 901389 + ... + 923667.

Almost surely, 2^20330211312 is an apocalyptic number.

It is an amenable number.

20330211312 is an abundant number, since it is smaller than the sum of its proper divisors (36577676608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20330211312 is a wasteful number, since it uses less digits than its factorization.

20330211312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28630 (or 28621 counting only the distinct ones).

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

Adding to 20330211312 its reverse (21311203302), we get a palindrome (41641414614).

The spelling of 20330211312 in words is "twenty billion, three hundred thirty million, two hundred eleven thousand, three hundred twelve".