2102111312320 has 56 divisors (see below), whose sum is σ = 5007011553648. Its totient is φ = 840616243200.

The previous prime is 2102111312317. The next prime is 2102111312351. The reversal of 2102111312320 is 232131112012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291240 + ... + 2071000.

Almost surely, 2^{2102111312320} is an apocalyptic number.

2102111312320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102111312320 is an abundant number, since it is smaller than the sum of its proper divisors (2904900241328).

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

2102111312320 is a wasteful number, since it uses less digits than its factorization.

2102111312320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783469 (or 1783459 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2102111312320 its reverse (232131112012), we get a palindrome (2334242424332).

The spelling of 2102111312320 in words is "two trillion, one hundred two billion, one hundred eleven million, three hundred twelve thousand, three hundred twenty".