3420421313 has 2 divisors, whose sum is σ = 3420421314. Its totient is φ = 3420421312.

The previous prime is 3420421289. The next prime is 3420421331. The reversal of 3420421313 is 3131240243.

Together with next prime (3420421331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2579827264 + 840594049 = 50792^2 + 28993^2 .

It is a cyclic number.

It is not a de Polignac number, because 3420421313 - 2¹⁴ = 3420404929 is a prime.

It is not a weakly prime, because it can be changed into another prime (3420421393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1710210656 + 1710210657.

It is an arithmetic number, because the mean of its divisors is an integer number (1710210657).

Almost surely, 2^3420421313 is an apocalyptic number.

It is an amenable number.

3420421313 is a deficient number, since it is larger than the sum of its proper divisors (1).

3420421313 is an equidigital number, since it uses as much as digits as its factorization.

3420421313 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 3420421313 is about 58484.3681080680. The cubic root of 3420421313 is about 1506.6991200611.

Adding to 3420421313 its reverse (3131240243), we get a palindrome (6551661556).

The spelling of 3420421313 in words is "three billion, four hundred twenty million, four hundred twenty-one thousand, three hundred thirteen".