32423344021 has 2 divisors, whose sum is σ = 32423344022. Its totient is φ = 32423344020.

The previous prime is 32423344003. The next prime is 32423344043. The reversal of 32423344021 is 12044332423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32414041521 + 9302500 = 180039^2 + 3050^2 .

It is a cyclic number.

It is not a de Polignac number, because 32423344021 - 2⁵ = 32423343989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32423344721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16211672010 + 16211672011.

It is an arithmetic number, because the mean of its divisors is an integer number (16211672011).

Almost surely, 2^32423344021 is an apocalyptic number.

It is an amenable number.

32423344021 is a deficient number, since it is larger than the sum of its proper divisors (1).

32423344021 is an equidigital number, since it uses as much as digits as its factorization.

32423344021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 32423344021 its reverse (12044332423), we get a palindrome (44467676444).

The spelling of 32423344021 in words is "thirty-two billion, four hundred twenty-three million, three hundred forty-four thousand, twenty-one".