20310453621140 has 24 divisors (see below), whose sum is σ = 42810510060360. Its totient is φ = 8093980028288.

The previous prime is 20310453621131. The next prime is 20310453621181. The reversal of 20310453621140 is 4112635401302.

It can be written as a sum of positive squares in 4 ways, for example, as 71720053636 + 20238733567504 = 267806^2 + 4498748^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20310453621097 and 20310453621106.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1887583247 + ... + 1887594006.

It is an arithmetic number, because the mean of its divisors is an integer number (1783771252515).

Almost surely, 2^{20310453621140} is an apocalyptic number.

20310453621140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20310453621140 is an abundant number, since it is smaller than the sum of its proper divisors (22500056439220).

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

20310453621140 is a wasteful number, since it uses less digits than its factorization.

20310453621140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3775177531 (or 3775177529 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 20310453621140 in words is "twenty trillion, three hundred ten billion, four hundred fifty-three million, six hundred twenty-one thousand, one hundred forty".