442231103531 has 4 divisors (see below), whose sum is σ = 505406975472. Its totient is φ = 379055231592.

The previous prime is 442231103527. The next prime is 442231103533. The reversal of 442231103531 is 135301132244.

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

It is a cyclic number.

It is not a de Polignac number, because 442231103531 - 2² = 442231103527 is a prime.

It is a super-2 number, since 2×442231103531² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 442231103494 and 442231103503.

It is not an unprimeable number, because it can be changed into a prime (442231103533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31587935960 + ... + 31587935973.

It is an arithmetic number, because the mean of its divisors is an integer number (126351743868).

Almost surely, 2^442231103531 is an apocalyptic number.

442231103531 is a deficient number, since it is larger than the sum of its proper divisors (63175871941).

442231103531 is an equidigital number, since it uses as much as digits as its factorization.

442231103531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63175871940.

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 442231103531 its reverse (135301132244), we get a palindrome (577532235775).

The spelling of 442231103531 in words is "four hundred forty-two billion, two hundred thirty-one million, one hundred three thousand, five hundred thirty-one".