421204332140239 has 2 divisors, whose sum is σ = 421204332140240. Its totient is φ = 421204332140238.

The previous prime is 421204332140237. The next prime is 421204332140321. The reversal of 421204332140239 is 932041233402124.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 421204332140239 - 2¹ = 421204332140237 is a prime.

Together with 421204332140237, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (421204332140237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210602166070119 + 210602166070120.

It is an arithmetic number, because the mean of its divisors is an integer number (210602166070120).

Almost surely, 2^{421204332140239} is an apocalyptic number.

421204332140239 is a deficient number, since it is larger than the sum of its proper divisors (1).

421204332140239 is an equidigital number, since it uses as much as digits as its factorization.

421204332140239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 421204332140239 in words is "four hundred twenty-one trillion, two hundred four billion, three hundred thirty-two million, one hundred forty thousand, two hundred thirty-nine".