1032220321 has 4 divisors (see below), whose sum is σ = 1126058544. Its totient is φ = 938382100.

The previous prime is 1032220307. The next prime is 1032220337. The reversal of 1032220321 is 1230222301.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1032220321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1032220295 and 1032220304.

It is not an unprimeable number, because it can be changed into a prime (1032220351) 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, 46919095 + ... + 46919116.

It is an arithmetic number, because the mean of its divisors is an integer number (281514636).

Almost surely, 2^1032220321 is an apocalyptic number.

1032220321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1032220321 is a deficient number, since it is larger than the sum of its proper divisors (93838223).

1032220321 is an equidigital number, since it uses as much as digits as its factorization.

1032220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93838222.

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

The square root of 1032220321 is about 32128.1857719978. The cubic root of 1032220321 is about 1010.6267785557.

Adding to 1032220321 its reverse (1230222301), we get a palindrome (2262442622).

The spelling of 1032220321 in words is "one billion, thirty-two million, two hundred twenty thousand, three hundred twenty-one".