20023332312 has 16 divisors (see below), whose sum is σ = 50058330840. Its totient is φ = 6674444096.

The previous prime is 20023332283. The next prime is 20023332317. The reversal of 20023332312 is 21323332002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023332317) 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, 417152733 + ... + 417152780.

Almost surely, 2^20023332312 is an apocalyptic number.

It is an amenable number.

20023332312 is an abundant number, since it is smaller than the sum of its proper divisors (30034998528).

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

20023332312 is a wasteful number, since it uses less digits than its factorization.

20023332312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834305522 (or 834305518 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20023332312 its reverse (21323332002), we get a palindrome (41346664314).

The spelling of 20023332312 in words is "twenty billion, twenty-three million, three hundred thirty-two thousand, three hundred twelve".