32243021321 has 16 divisors (see below), whose sum is σ = 39180049920. Its totient is φ = 25902320640.

The previous prime is 32243021281. The next prime is 32243021347. The reversal of 32243021321 is 12312034223.

It is a de Polignac number, because none of the positive numbers 2^k-32243021321 is a prime.

It is a super-2 number, since 2×32243021321² (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 (32243021021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538400 + ... + 595281.

It is an arithmetic number, because the mean of its divisors is an integer number (2448753120).

Almost surely, 2^32243021321 is an apocalyptic number.

It is an amenable number.

32243021321 is a deficient number, since it is larger than the sum of its proper divisors (6937028599).

32243021321 is a wasteful number, since it uses less digits than its factorization.

32243021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133944.

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

Adding to 32243021321 its reverse (12312034223), we get a palindrome (44555055544).

The spelling of 32243021321 in words is "thirty-two billion, two hundred forty-three million, twenty-one thousand, three hundred twenty-one".