421344441383 has 2 divisors, whose sum is σ = 421344441384. Its totient is φ = 421344441382.

The previous prime is 421344441359. The next prime is 421344441439. The reversal of 421344441383 is 383144443124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421344441383 - 2⁸ = 421344441127 is a prime.

It is a super-2 number, since 2×421344441383² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421344441383.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421344441283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210672220691 + 210672220692.

It is an arithmetic number, because the mean of its divisors is an integer number (210672220692).

Almost surely, 2^421344441383 is an apocalyptic number.

421344441383 is a deficient number, since it is larger than the sum of its proper divisors (1).

421344441383 is an equidigital number, since it uses as much as digits as its factorization.

421344441383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 442368, while the sum is 41.

The spelling of 421344441383 in words is "four hundred twenty-one billion, three hundred forty-four million, four hundred forty-one thousand, three hundred eighty-three".