2101117379 has 4 divisors (see below), whose sum is σ = 2103984576. Its totient is φ = 2098250184.

The previous prime is 2101117331. The next prime is 2101117427. The reversal of 2101117379 is 9737111012.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2101117331) and next prime (2101117427).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101117379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2101117079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1432499 + ... + 1433964.

It is an arithmetic number, because the mean of its divisors is an integer number (525996144).

Almost surely, 2^2101117379 is an apocalyptic number.

2101117379 is a deficient number, since it is larger than the sum of its proper divisors (2867197).

2101117379 is an equidigital number, since it uses as much as digits as its factorization.

2101117379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2867196.

The product of its (nonzero) digits is 2646, while the sum is 32.

The square root of 2101117379 is about 45837.9469326452. The cubic root of 2101117379 is about 1280.8062504726.

The spelling of 2101117379 in words is "two billion, one hundred one million, one hundred seventeen thousand, three hundred seventy-nine".