32230000021 has 2 divisors, whose sum is σ = 32230000022. Its totient is φ = 32230000020.

The previous prime is 32230000013. The next prime is 32230000037. The reversal of 32230000021 is 12000003223.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32010219396 + 219780625 = 178914^2 + 14825^2 .

It is a cyclic number.

It is not a de Polignac number, because 32230000021 - 2³ = 32230000013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32229999956 and 32230000010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32230000721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16115000010 + 16115000011.

It is an arithmetic number, because the mean of its divisors is an integer number (16115000011).

Almost surely, 2^32230000021 is an apocalyptic number.

It is an amenable number.

32230000021 is a deficient number, since it is larger than the sum of its proper divisors (1).

32230000021 is an equidigital number, since it uses as much as digits as its factorization.

32230000021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 32230000021 its reverse (12000003223), we get a palindrome (44230003244).

The spelling of 32230000021 in words is "thirty-two billion, two hundred thirty million, twenty-one", and thus it is an aban number.