20231312367645 has 24 divisors (see below), whose sum is σ = 35067753676800. Its totient is φ = 10789988471136.

The previous prime is 20231312367613. The next prime is 20231312367659. The reversal of 20231312367645 is 54676321313202.

It is a happy number.

20231312367645 is a `hidden beast` number, since 2 + 0 + 231 + 3 + 12 + 367 + 6 + 45 = 666.

It is not a de Polignac number, because 20231312367645 - 2⁵ = 20231312367613 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 20231312367645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11996076 + ... + 13578234.

It is an arithmetic number, because the mean of its divisors is an integer number (1461156403200).

Almost surely, 2^{20231312367645} is an apocalyptic number.

It is an amenable number.

20231312367645 is a deficient number, since it is larger than the sum of its proper divisors (14836441309155).

20231312367645 is a wasteful number, since it uses less digits than its factorization.

20231312367645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866329 (or 1866326 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 45.

The spelling of 20231312367645 in words is "twenty trillion, two hundred thirty-one billion, three hundred twelve million, three hundred sixty-seven thousand, six hundred forty-five".