42321442001 has 6 divisors (see below), whose sum is σ = 43831125702. Its totient is φ = 40862081120.

The previous prime is 42321441997. The next prime is 42321442021. The reversal of 42321442001 is 10024412324.

It can be written as a sum of positive squares in 3 ways, for example, as 4257432001 + 38064010000 = 65249^2 + 195100^2 .

It is not a de Polignac number, because 42321442001 - 2² = 42321441997 is a prime.

It is a super-2 number, since 2×42321442001² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42321442021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25160540 + ... + 25162221.

It is an arithmetic number, because the mean of its divisors is an integer number (7305187617).

Almost surely, 2^42321442001 is an apocalyptic number.

It is an amenable number.

42321442001 is a deficient number, since it is larger than the sum of its proper divisors (1509683701).

42321442001 is an equidigital number, since it uses as much as digits as its factorization.

42321442001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50322819 (or 50322790 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 42321442001 its reverse (10024412324), we get a palindrome (52345854325).

The spelling of 42321442001 in words is "forty-two billion, three hundred twenty-one million, four hundred forty-two thousand, one".