1032320221 has 8 divisors (see below), whose sum is σ = 1092754080. Its totient is φ = 973542192.

The previous prime is 1032320213. The next prime is 1032320231. The reversal of 1032320221 is 1220232301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1032320221 - 2³ = 1032320213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1032320195 and 1032320204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1032320231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412675 + ... + 415168.

It is an arithmetic number, because the mean of its divisors is an integer number (136594260).

Almost surely, 2^1032320221 is an apocalyptic number.

It is an amenable number.

1032320221 is a deficient number, since it is larger than the sum of its proper divisors (60433859).

1032320221 is an equidigital number, since it uses as much as digits as its factorization.

1032320221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 827915.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1032320221 is about 32129.7404440185. The cubic root of 1032320221 is about 1010.6593808843.

Adding to 1032320221 its reverse (1220232301), we get a palindrome (2252552522).

The spelling of 1032320221 in words is "one billion, thirty-two million, three hundred twenty thousand, two hundred twenty-one".