20313681127680 has 144 divisors (see below), whose sum is σ = 66257177543424. Its totient is φ = 5301726658560.

The previous prime is 20313681127673. The next prime is 20313681127703. The reversal of 20313681127680 is 8672118631302.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56096341 + ... + 56457300.

It is an arithmetic number, because the mean of its divisors is an integer number (460119288496).

Almost surely, 2^{20313681127680} is an apocalyptic number.

20313681127680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20313681127680 is an abundant number, since it is smaller than the sum of its proper divisors (45943496415744).

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

20313681127680 is a wasteful number, since it uses less digits than its factorization.

20313681127680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112553712 (or 112553698 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

Adding to 20313681127680 its reverse (8672118631302), we get a palindrome (28985799758982).

The spelling of 20313681127680 in words is "twenty trillion, three hundred thirteen billion, six hundred eighty-one million, one hundred twenty-seven thousand, six hundred eighty".