2113979601 has 8 divisors (see below), whose sum is σ = 2819108160. Its totient is φ = 1409085392.

The previous prime is 2113979561. The next prime is 2113979603. The reversal of 2113979601 is 1069793112.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2113979601 - 2¹¹ = 2113977553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2113979601.

It is not an unprimeable number, because it can be changed into a prime (2113979603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36330 + ... + 74483.

It is an arithmetic number, because the mean of its divisors is an integer number (352388520).

Almost surely, 2^2113979601 is an apocalyptic number.

It is an amenable number.

2113979601 is a deficient number, since it is larger than the sum of its proper divisors (705128559).

2113979601 is a wasteful number, since it uses less digits than its factorization.

2113979601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117175.

The product of its (nonzero) digits is 20412, while the sum is 39.

The square root of 2113979601 is about 45978.0338966337. The cubic root of 2113979601 is about 1283.4144678151.

The spelling of 2113979601 in words is "two billion, one hundred thirteen million, nine hundred seventy-nine thousand, six hundred one".