3321421403 has 2 divisors, whose sum is σ = 3321421404. Its totient is φ = 3321421402.

The previous prime is 3321421387. The next prime is 3321421429. The reversal of 3321421403 is 3041241233.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3321421403 - 2⁴ = 3321421387 is a prime.

It is a super-2 number, since 2×3321421403² = 22063680272612976818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3321426403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1660710701 + 1660710702.

It is an arithmetic number, because the mean of its divisors is an integer number (1660710702).

Almost surely, 2^3321421403 is an apocalyptic number.

3321421403 is a deficient number, since it is larger than the sum of its proper divisors (1).

3321421403 is an equidigital number, since it uses as much as digits as its factorization.

3321421403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 3321421403 is about 57631.7742482391. The cubic root of 3321421403 is about 1492.0200523136.

Adding to 3321421403 its reverse (3041241233), we get a palindrome (6362662636).

The spelling of 3321421403 in words is "three billion, three hundred twenty-one million, four hundred twenty-one thousand, four hundred three".