20312132312 has 8 divisors (see below), whose sum is σ = 38085248100. Its totient is φ = 10156066152.

The previous prime is 20312132299. The next prime is 20312132317. The reversal of 20312132312 is 21323121302.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312132317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1269508262 + ... + 1269508277.

Almost surely, 2^20312132312 is an apocalyptic number.

It is an amenable number.

20312132312 is a deficient number, since it is larger than the sum of its proper divisors (17773115788).

20312132312 is a wasteful number, since it uses less digits than its factorization.

20312132312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539016545 (or 2539016541 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20312132312 its reverse (21323121302), we get a palindrome (41635253614).

The spelling of 20312132312 in words is "twenty billion, three hundred twelve million, one hundred thirty-two thousand, three hundred twelve".