2110001321 has 2 divisors, whose sum is σ = 2110001322. Its totient is φ = 2110001320.

The previous prime is 2110001297. The next prime is 2110001351. The reversal of 2110001321 is 1231000112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1322413225 + 787588096 = 36365^2 + 28064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2110001321 is a prime.

It is not a weakly prime, because it can be changed into another prime (2110001351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055000660 + 1055000661.

It is an arithmetic number, because the mean of its divisors is an integer number (1055000661).

Almost surely, 2^2110001321 is an apocalyptic number.

It is an amenable number.

2110001321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2110001321 is an equidigital number, since it uses as much as digits as its factorization.

2110001321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2110001321 is about 45934.7506905175. The cubic root of 2110001321 is about 1282.6088800504.

Adding to 2110001321 its reverse (1231000112), we get a palindrome (3341001433).

The spelling of 2110001321 in words is "two billion, one hundred ten million, one thousand, three hundred twenty-one".