20364233131512 has 48 divisors (see below), whose sum is σ = 55159294816080. Its totient is φ = 6787319136000.

The previous prime is 20364233131511. The next prime is 20364233131591. The reversal of 20364233131512 is 21513133246302.

20364233131512 is a `hidden beast` number, since 2 + 0 + 3 + 6 + 4 + 2 + 3 + 3 + 131 + 512 = 666.

It is a super-2 number, since 2×20364233131512² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20364233131511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15154689 + ... + 16443632.

It is an arithmetic number, because the mean of its divisors is an integer number (1149151975335).

Almost surely, 2^{20364233131512} is an apocalyptic number.

It is an amenable number.

20364233131512 is an abundant number, since it is smaller than the sum of its proper divisors (34795061684568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20364233131512 is a wasteful number, since it uses less digits than its factorization.

20364233131512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31607284 (or 31607277 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Adding to 20364233131512 its reverse (21513133246302), we get a palindrome (41877366377814).

The spelling of 20364233131512 in words is "twenty trillion, three hundred sixty-four billion, two hundred thirty-three million, one hundred thirty-one thousand, five hundred twelve".