20312303012312 has 8 divisors (see below), whose sum is σ = 38085568148100. Its totient is φ = 10156151506152.

The previous prime is 20312303012299. The next prime is 20312303012321. The reversal of 20312303012312 is 21321030321302.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1269518938262 + ... + 1269518938277.

Almost surely, 2^{20312303012312} is an apocalyptic number.

It is an amenable number.

20312303012312 is a deficient number, since it is larger than the sum of its proper divisors (17773265135788).

20312303012312 is a wasteful number, since it uses less digits than its factorization.

20312303012312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2539037876545 (or 2539037876541 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20312303012312 its reverse (21321030321302), we get a palindrome (41633333333614).

The spelling of 20312303012312 in words is "twenty trillion, three hundred twelve billion, three hundred three million, twelve thousand, three hundred twelve".