2101201237 has 2 divisors, whose sum is σ = 2101201238. Its totient is φ = 2101201236.

The previous prime is 2101201183. The next prime is 2101201283. The reversal of 2101201237 is 7321021012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2039515921 + 61685316 = 45161^2 + 7854^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101201237 - 2²⁷ = 1966983509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101201337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050600618 + 1050600619.

It is an arithmetic number, because the mean of its divisors is an integer number (1050600619).

Almost surely, 2^2101201237 is an apocalyptic number.

It is an amenable number.

2101201237 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101201237 is an equidigital number, since it uses as much as digits as its factorization.

2101201237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 2101201237 is about 45838.8616459877. The cubic root of 2101201237 is about 1280.8232897272.

Adding to 2101201237 its reverse (7321021012), we get a palindrome (9422222249).

The spelling of 2101201237 in words is "two billion, one hundred one million, two hundred one thousand, two hundred thirty-seven".