2321221403 has 2 divisors, whose sum is σ = 2321221404. Its totient is φ = 2321221402.

The previous prime is 2321221391. The next prime is 2321221411. The reversal of 2321221403 is 3041221232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2321221403 - 2²² = 2317027099 is a prime.

It is not a weakly prime, because it can be changed into another prime (2321221423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160610701 + 1160610702.

It is an arithmetic number, because the mean of its divisors is an integer number (1160610702).

Almost surely, 2^2321221403 is an apocalyptic number.

2321221403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2321221403 is an equidigital number, since it uses as much as digits as its factorization.

2321221403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 2321221403 is about 48179.0556466189. The cubic root of 2321221403 is about 1324.0534648213.

Adding to 2321221403 its reverse (3041221232), we get a palindrome (5362442635).

The spelling of 2321221403 in words is "two billion, three hundred twenty-one million, two hundred twenty-one thousand, four hundred three".