2102421030320 has 80 divisors (see below), whose sum is σ = 5264383495392. Its totient is φ = 776242452480.

The previous prime is 2102421030317. The next prime is 2102421030371. The reversal of 2102421030320 is 230301242012.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2102421030292 and 2102421030301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34656815 + ... + 34717425.

Almost surely, 2^{2102421030320} is an apocalyptic number.

2102421030320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102421030320 is an abundant number, since it is smaller than the sum of its proper divisors (3161962465072).

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

2102421030320 is a wasteful number, since it uses less digits than its factorization.

2102421030320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93990 (or 93984 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2102421030320 its reverse (230301242012), we get a palindrome (2332722272332).

The spelling of 2102421030320 in words is "two trillion, one hundred two billion, four hundred twenty-one million, thirty thousand, three hundred twenty".