2123321201 has 2 divisors, whose sum is σ = 2123321202. Its totient is φ = 2123321200.

The previous prime is 2123321177. The next prime is 2123321203. The reversal of 2123321201 is 1021233212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1468728976 + 654592225 = 38324^2 + 25585^2 .

It is a cyclic number.

It is not a de Polignac number, because 2123321201 - 2²² = 2119126897 is a prime.

Together with 2123321203, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2123321201.

It is not a weakly prime, because it can be changed into another prime (2123321203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061660600 + 1061660601.

It is an arithmetic number, because the mean of its divisors is an integer number (1061660601).

Almost surely, 2^2123321201 is an apocalyptic number.

It is an amenable number.

2123321201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2123321201 is an equidigital number, since it uses as much as digits as its factorization.

2123321201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2123321201 is about 46079.5095568518. The cubic root of 2123321201 is about 1285.3021441748.

Adding to 2123321201 its reverse (1021233212), we get a palindrome (3144554413).

The spelling of 2123321201 in words is "two billion, one hundred twenty-three million, three hundred twenty-one thousand, two hundred one".