3423305563921 has 2 divisors, whose sum is σ = 3423305563922. Its totient is φ = 3423305563920.

The previous prime is 3423305563883. The next prime is 3423305563939. The reversal of 3423305563921 is 1293655033243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2247900490000 + 1175405073921 = 1499300^2 + 1084161^2 .

It is a cyclic number.

It is not a de Polignac number, because 3423305563921 - 2¹³ = 3423305555729 is a prime.

It is not a weakly prime, because it can be changed into another prime (3423305560921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1711652781960 + 1711652781961.

It is an arithmetic number, because the mean of its divisors is an integer number (1711652781961).

Almost surely, 2^{3423305563921} is an apocalyptic number.

It is an amenable number.

3423305563921 is a deficient number, since it is larger than the sum of its proper divisors (1).

3423305563921 is an equidigital number, since it uses as much as digits as its factorization.

3423305563921 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1749600, while the sum is 46.

The spelling of 3423305563921 in words is "three trillion, four hundred twenty-three billion, three hundred five million, five hundred sixty-three thousand, nine hundred twenty-one".