2100347700 has 72 divisors (see below), whose sum is σ = 6629471520. Its totient is φ = 509174400.

The previous prime is 2100347687. The next prime is 2100347731. The reversal of 2100347700 is 77430012.

It is a super-2 number, since 2×2100347700² = 8822920921790580000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 314935 + ... + 321534.

Almost surely, 2^2100347700 is an apocalyptic number.

2100347700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100347700 is an abundant number, since it is smaller than the sum of its proper divisors (4529123820).

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

2100347700 is a wasteful number, since it uses less digits than its factorization.

2100347700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 636497 (or 636490 counting only the distinct ones).

The product of its (nonzero) digits is 1176, while the sum is 24.

The square root of 2100347700 is about 45829.5505105603. The cubic root of 2100347700 is about 1280.6498368611.

Adding to 2100347700 its reverse (77430012), we get a palindrome (2177777712).

The spelling of 2100347700 in words is "two billion, one hundred million, three hundred forty-seven thousand, seven hundred".