442023403031 has 4 divisors (see below), whose sum is σ = 505169603472. Its totient is φ = 378877202592.

The previous prime is 442023403013. The next prime is 442023403039. The reversal of 442023403031 is 130304320244.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 442023403031 - 2⁶ = 442023402967 is a prime.

It is a super-2 number, since 2×442023403031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442023403039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31573100210 + ... + 31573100223.

It is an arithmetic number, because the mean of its divisors is an integer number (126292400868).

Almost surely, 2^442023403031 is an apocalyptic number.

442023403031 is a deficient number, since it is larger than the sum of its proper divisors (63146200441).

442023403031 is an equidigital number, since it uses as much as digits as its factorization.

442023403031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63146200440.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 442023403031 its reverse (130304320244), we get a palindrome (572327723275).

The spelling of 442023403031 in words is "four hundred forty-two billion, twenty-three million, four hundred three thousand, thirty-one".