2113566001 has 4 divisors (see below), whose sum is σ = 2117718900. Its totient is φ = 2109413104.

The previous prime is 2113565989. The next prime is 2113566017. The reversal of 2113566001 is 1006653112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1842469776 + 271096225 = 42924^2 + 16465^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113566001 - 2⁵ = 2113565969 is a prime.

It is a super-2 number, since 2×2113566001² = 8934322481166264002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113566601) 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, 2075686 + ... + 2076703.

It is an arithmetic number, because the mean of its divisors is an integer number (529429725).

Almost surely, 2^2113566001 is an apocalyptic number.

It is an amenable number.

2113566001 is a deficient number, since it is larger than the sum of its proper divisors (4152899).

2113566001 is an equidigital number, since it uses as much as digits as its factorization.

2113566001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4152898.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 2113566001 is about 45973.5358766323. The cubic root of 2113566001 is about 1283.3307623644.

The spelling of 2113566001 in words is "two billion, one hundred thirteen million, five hundred sixty-six thousand, one".