2101100279 has 2 divisors, whose sum is σ = 2101100280. Its totient is φ = 2101100278.

The previous prime is 2101100269. The next prime is 2101100291. The reversal of 2101100279 is 9720011012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101100279 - 2¹² = 2101096183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101100249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050550139 + 1050550140.

It is an arithmetic number, because the mean of its divisors is an integer number (1050550140).

Almost surely, 2^2101100279 is an apocalyptic number.

2101100279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101100279 is an equidigital number, since it uses as much as digits as its factorization.

2101100279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 2101100279 is about 45837.7604055870. The cubic root of 2101100279 is about 1280.8027758379.

The spelling of 2101100279 in words is "two billion, one hundred one million, one hundred thousand, two hundred seventy-nine".