2101939300 has 18 divisors (see below), whose sum is σ = 4561208498. Its totient is φ = 840775680.

The previous prime is 2101939289. The next prime is 2101939303. The reversal of 2101939300 is 39391012.

It can be written as a sum of positive squares in 3 ways, for example, as 1183744 + 2100755556 = 1088^2 + 45834^2 .

It is not an unprimeable number, because it can be changed into a prime (2101939303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10509597 + ... + 10509796.

Almost surely, 2^2101939300 is an apocalyptic number.

2101939300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2101939300 is an abundant number, since it is smaller than the sum of its proper divisors (2459269198).

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

2101939300 is a wasteful number, since it uses less digits than its factorization.

2101939300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21019407 (or 21019400 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 2101939300 is about 45846.9115644664. The cubic root of 2101939300 is about 1280.9732384962.

The spelling of 2101939300 in words is "two billion, one hundred one million, nine hundred thirty-nine thousand, three hundred".