20502312313120 has 96 divisors (see below), whose sum is σ = 55948288709376. Its totient is φ = 7016834150400.

The previous prime is 20502312313079. The next prime is 20502312313129. The reversal of 20502312313120 is 2131321320502.

It is a super-3 number, since 3×20502312313120³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20502312313129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342588936 + ... + 342648775.

It is an arithmetic number, because the mean of its divisors is an integer number (582794674056).

Almost surely, 2^{20502312313120} is an apocalyptic number.

20502312313120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20502312313120 is an abundant number, since it is smaller than the sum of its proper divisors (35445976396256).

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

20502312313120 is a wasteful number, since it uses less digits than its factorization.

20502312313120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685237754 (or 685237746 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 20502312313120 its reverse (2131321320502), we get a palindrome (22633633633622).

The spelling of 20502312313120 in words is "twenty trillion, five hundred two billion, three hundred twelve million, three hundred thirteen thousand, one hundred twenty".