442031421101 has 4 divisors (see below), whose sum is σ = 442118320512. Its totient is φ = 441944521692.

The previous prime is 442031421077. The next prime is 442031421119. The reversal of 442031421101 is 101124130244.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 442031421101 - 2⁶ = 442031421037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442031423101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43442075 + ... + 43452248.

It is an arithmetic number, because the mean of its divisors is an integer number (110529580128).

Almost surely, 2^442031421101 is an apocalyptic number.

It is an amenable number.

442031421101 is a deficient number, since it is larger than the sum of its proper divisors (86899411).

442031421101 is an equidigital number, since it uses as much as digits as its factorization.

442031421101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86899410.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 442031421101 its reverse (101124130244), we get a palindrome (543155551345).

The spelling of 442031421101 in words is "four hundred forty-two billion, thirty-one million, four hundred twenty-one thousand, one hundred one".