42203132321 has 4 divisors (see below), whose sum is σ = 48232151232. Its totient is φ = 36174113412.

The previous prime is 42203132317. The next prime is 42203132333. The reversal of 42203132321 is 12323130224.

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 42203132321 - 2² = 42203132317 is a prime.

It is a super-2 number, since 2×42203132321² (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 (42203132341) 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, 3014509445 + ... + 3014509458.

It is an arithmetic number, because the mean of its divisors is an integer number (12058037808).

Almost surely, 2^42203132321 is an apocalyptic number.

It is an amenable number.

42203132321 is a deficient number, since it is larger than the sum of its proper divisors (6029018911).

42203132321 is an equidigital number, since it uses as much as digits as its factorization.

42203132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6029018910.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 42203132321 its reverse (12323130224), we get a palindrome (54526262545).

The spelling of 42203132321 in words is "forty-two billion, two hundred three million, one hundred thirty-two thousand, three hundred twenty-one".