2021308120704 has 256 divisors, whose sum is σ = 5479714437120. Its totient is φ = 660054478848.

The previous prime is 2021308120649. The next prime is 2021308120721. The reversal of 2021308120704 is 4070218031202.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2456024037 + ... + 2456024859.

It is an arithmetic number, because the mean of its divisors is an integer number (21405134520).

Almost surely, 2^{2021308120704} is an apocalyptic number.

2021308120704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021308120704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2739857218560).

2021308120704 is an abundant number, since it is smaller than the sum of its proper divisors (3458406316416).

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

2021308120704 is a wasteful number, since it uses less digits than its factorization.

2021308120704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1479 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The spelling of 2021308120704 in words is "two trillion, twenty-one billion, three hundred eight million, one hundred twenty thousand, seven hundred four".