2120738531280 has 40 divisors (see below), whose sum is σ = 6574289447712. Its totient is φ = 565530274944.

The previous prime is 2120738531279. The next prime is 2120738531293. The reversal of 2120738531280 is 821358370212.

It is a tau number, because it is divible by the number of its divisors (40).

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, 4418205034 + ... + 4418205513.

Almost surely, 2^{2120738531280} is an apocalyptic number.

2120738531280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120738531280 is an abundant number, since it is smaller than the sum of its proper divisors (4453550916432).

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

2120738531280 is a wasteful number, since it uses less digits than its factorization.

2120738531280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8836410563 (or 8836410557 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The spelling of 2120738531280 in words is "two trillion, one hundred twenty billion, seven hundred thirty-eight million, five hundred thirty-one thousand, two hundred eighty".