442321132291 has 2 divisors, whose sum is σ = 442321132292. Its totient is φ = 442321132290.

The previous prime is 442321132277. The next prime is 442321132303. The reversal of 442321132291 is 192231123244.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 442321132291 - 2¹³ = 442321124099 is a prime.

It is not a weakly prime, because it can be changed into another prime (442321102291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221160566145 + 221160566146.

It is an arithmetic number, because the mean of its divisors is an integer number (221160566146).

Almost surely, 2^442321132291 is an apocalyptic number.

442321132291 is a deficient number, since it is larger than the sum of its proper divisors (1).

442321132291 is an equidigital number, since it uses as much as digits as its factorization.

442321132291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The spelling of 442321132291 in words is "four hundred forty-two billion, three hundred twenty-one million, one hundred thirty-two thousand, two hundred ninety-one".