2113433869 has 4 divisors (see below), whose sum is σ = 2117097244. Its totient is φ = 2109770496.

The previous prime is 2113433849. The next prime is 2113433887. The reversal of 2113433869 is 9683343112.

It is a happy number.

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 1222411369 + 891022500 = 34963^2 + 29850^2 .

It is not a de Polignac number, because 2113433869 - 2⁵ = 2113433837 is a prime.

It is a super-2 number, since 2×2113433869² = 8933205437272618322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113433849) 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, 1830822 + ... + 1831975.

It is an arithmetic number, because the mean of its divisors is an integer number (529274311).

Almost surely, 2^2113433869 is an apocalyptic number.

It is an amenable number.

2113433869 is a deficient number, since it is larger than the sum of its proper divisors (3663375).

2113433869 is an equidigital number, since it uses as much as digits as its factorization.

2113433869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663374.

The product of its digits is 93312, while the sum is 40.

The square root of 2113433869 is about 45972.0988100391. The cubic root of 2113433869 is about 1283.3040188428.

The spelling of 2113433869 in words is "two billion, one hundred thirteen million, four hundred thirty-three thousand, eight hundred sixty-nine".