2113201873 has 2 divisors, whose sum is σ = 2113201874. Its totient is φ = 2113201872.

The previous prime is 2113201837. The next prime is 2113201877. The reversal of 2113201873 is 3781023112.

Together with previous prime (2113201837) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2089221264 + 23980609 = 45708^2 + 4897^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113201873 - 2²⁹ = 1576330961 is a prime.

It is not a weakly prime, because it can be changed into another prime (2113201877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056600936 + 1056600937.

It is an arithmetic number, because the mean of its divisors is an integer number (1056600937).

Almost surely, 2^2113201873 is an apocalyptic number.

It is an amenable number.

2113201873 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113201873 is an equidigital number, since it uses as much as digits as its factorization.

2113201873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 2113201873 is about 45969.5755146814. The cubic root of 2113201873 is about 1283.2570601471.

Adding to 2113201873 its reverse (3781023112), we get a palindrome (5894224985).

The spelling of 2113201873 in words is "two billion, one hundred thirteen million, two hundred one thousand, eight hundred seventy-three".