2113400233 has 6 divisors (see below), whose sum is σ = 2458445226. Its totient is φ = 1811485872.

The previous prime is 2113400221. The next prime is 2113400239. The reversal of 2113400233 is 3320043112.

It can be written as a sum of positive squares in only one way, i.e., 2111218704 + 2181529 = 45948^2 + 1477^2 .

It is not a de Polignac number, because 2113400233 - 2⁹ = 2113399721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2113400233.

It is not an unprimeable number, because it can be changed into a prime (2113400239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 21565260 + ... + 21565357.

It is an arithmetic number, because the mean of its divisors is an integer number (409740871).

Almost surely, 2^2113400233 is an apocalyptic number.

It is an amenable number.

2113400233 is a deficient number, since it is larger than the sum of its proper divisors (345044993).

2113400233 is an equidigital number, since it uses as much as digits as its factorization.

2113400233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43130631 (or 43130624 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2113400233 is about 45971.7329779942. The cubic root of 2113400233 is about 1283.2972107372.

Adding to 2113400233 its reverse (3320043112), we get a palindrome (5433443345).

The spelling of 2113400233 in words is "two billion, one hundred thirteen million, four hundred thousand, two hundred thirty-three".