2123020201 has 2 divisors, whose sum is σ = 2123020202. Its totient is φ = 2123020200.

The previous prime is 2123020153. The next prime is 2123020219. The reversal of 2123020201 is 1020203212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1385626176 + 737394025 = 37224^2 + 27155^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123020201 - 2¹³ = 2123012009 is a prime.

It is not a weakly prime, because it can be changed into another prime (2123020001) 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, 1061510100 + 1061510101.

It is an arithmetic number, because the mean of its divisors is an integer number (1061510101).

Almost surely, 2^2123020201 is an apocalyptic number.

It is an amenable number.

2123020201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123020201 is an equidigital number, since it uses as much as digits as its factorization.

2123020201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 2123020201 is about 46076.2433473043. The cubic root of 2123020201 is about 1285.2414069003.

Adding to 2123020201 its reverse (1020203212), we get a palindrome (3143223413).

The spelling of 2123020201 in words is "two billion, one hundred twenty-three million, twenty thousand, two hundred one".