421313953433 has 2 divisors, whose sum is σ = 421313953434. Its totient is φ = 421313953432.

The previous prime is 421313953429. The next prime is 421313953451. The reversal of 421313953433 is 334359313124.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 413380844809 + 7933108624 = 642947^2 + 89068^2 .

It is a cyclic number.

It is not a de Polignac number, because 421313953433 - 2² = 421313953429 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (421313953453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210656976716 + 210656976717.

It is an arithmetic number, because the mean of its divisors is an integer number (210656976717).

Almost surely, 2^421313953433 is an apocalyptic number.

It is an amenable number.

421313953433 is a deficient number, since it is larger than the sum of its proper divisors (1).

421313953433 is an equidigital number, since it uses as much as digits as its factorization.

421313953433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 41.

The spelling of 421313953433 in words is "four hundred twenty-one billion, three hundred thirteen million, nine hundred fifty-three thousand, four hundred thirty-three".