20312332312 has 16 divisors (see below), whose sum is σ = 38126633400. Its totient is φ = 10145230080.

The previous prime is 20312332283. The next prime is 20312332319. The reversal of 20312332312 is 21323321302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312332319) 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, 1359114 + ... + 1373977.

Almost surely, 2^20312332312 is an apocalyptic number.

It is an amenable number.

20312332312 is a deficient number, since it is larger than the sum of its proper divisors (17814301088).

20312332312 is a wasteful number, since it uses less digits than its factorization.

20312332312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2734026 (or 2734022 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20312332312 its reverse (21323321302), we get a palindrome (41635653614).

The spelling of 20312332312 in words is "twenty billion, three hundred twelve million, three hundred thirty-two thousand, three hundred twelve".