20005345132312 has 16 divisors (see below), whose sum is σ = 38523806505360. Its totient is φ = 9732330064224.

The previous prime is 20005345132271. The next prime is 20005345132321. The reversal of 20005345132312 is 21323154350002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33792812428 + ... + 33792813019.

It is an arithmetic number, because the mean of its divisors is an integer number (2407737906585).

Almost surely, 2^{20005345132312} is an apocalyptic number.

It is an amenable number.

20005345132312 is a deficient number, since it is larger than the sum of its proper divisors (18518461373048).

20005345132312 is a wasteful number, since it uses less digits than its factorization.

20005345132312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67585625490 (or 67585625486 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 20005345132312 its reverse (21323154350002), we get a palindrome (41328499482314).

The spelling of 20005345132312 in words is "twenty trillion, five billion, three hundred forty-five million, one hundred thirty-two thousand, three hundred twelve".