202421304432439 has 2 divisors, whose sum is σ = 202421304432440. Its totient is φ = 202421304432438.

The previous prime is 202421304432427. The next prime is 202421304432443. The reversal of 202421304432439 is 934234403124202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 202421304432439 - 2¹¹ = 202421304430391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202421304432395 and 202421304432404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202421304432449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101210652216219 + 101210652216220.

It is an arithmetic number, because the mean of its divisors is an integer number (101210652216220).

Almost surely, 2^{202421304432439} is an apocalyptic number.

202421304432439 is a deficient number, since it is larger than the sum of its proper divisors (1).

202421304432439 is an equidigital number, since it uses as much as digits as its factorization.

202421304432439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 995328, while the sum is 43.

The spelling of 202421304432439 in words is "two hundred two trillion, four hundred twenty-one billion, three hundred four million, four hundred thirty-two thousand, four hundred thirty-nine".