2113196885 has 4 divisors (see below), whose sum is σ = 2535836268. Its totient is φ = 1690557504.

The previous prime is 2113196881. The next prime is 2113196957. The reversal of 2113196885 is 5886913112.

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 1388456644 + 724740241 = 37262^2 + 26921^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113196885 - 2² = 2113196881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113196881) 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, 211319684 + ... + 211319693.

It is an arithmetic number, because the mean of its divisors is an integer number (633959067).

Almost surely, 2^2113196885 is an apocalyptic number.

It is an amenable number.

2113196885 is a deficient number, since it is larger than the sum of its proper divisors (422639383).

2113196885 is an equidigital number, since it uses as much as digits as its factorization.

2113196885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422639382.

The product of its digits is 103680, while the sum is 44.

The square root of 2113196885 is about 45969.5212613749. The cubic root of 2113196885 is about 1283.2560504800.

The spelling of 2113196885 in words is "two billion, one hundred thirteen million, one hundred ninety-six thousand, eight hundred eighty-five".