2113505201 has 2 divisors, whose sum is σ = 2113505202. Its totient is φ = 2113505200.

The previous prime is 2113505153. The next prime is 2113505203. The reversal of 2113505201 is 1025053112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1927210000 + 186295201 = 43900^2 + 13649^2 .

It is a cyclic number.

It is not a de Polignac number, because 2113505201 - 2¹⁰ = 2113504177 is a prime.

Together with 2113505203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2113505203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056752600 + 1056752601.

It is an arithmetic number, because the mean of its divisors is an integer number (1056752601).

Almost surely, 2^2113505201 is an apocalyptic number.

It is an amenable number.

2113505201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113505201 is an equidigital number, since it uses as much as digits as its factorization.

2113505201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 2113505201 is about 45972.8746218898. The cubic root of 2113505201 is about 1283.3184565806.

Adding to 2113505201 its reverse (1025053112), we get a palindrome (3138558313).

The spelling of 2113505201 in words is "two billion, one hundred thirteen million, five hundred five thousand, two hundred one".