32030444021 has 4 divisors (see below), whose sum is σ = 32775338112. Its totient is φ = 31285549932.

The previous prime is 32030443969. The next prime is 32030444057. The reversal of 32030444021 is 12044403023.

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, and also an emirpimes, since its reverse is a distinct semiprime: 12044403023 = 2879 ⋅4183537.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32030444021 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 (32030441021) 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, 372446981 + ... + 372447066.

It is an arithmetic number, because the mean of its divisors is an integer number (8193834528).

Almost surely, 2^32030444021 is an apocalyptic number.

It is an amenable number.

32030444021 is a deficient number, since it is larger than the sum of its proper divisors (744894091).

32030444021 is an equidigital number, since it uses as much as digits as its factorization.

32030444021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 744894090.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 32030444021 its reverse (12044403023), we get a palindrome (44074847044).

The spelling of 32030444021 in words is "thirty-two billion, thirty million, four hundred forty-four thousand, twenty-one".