1001220323 has 8 divisors (see below), whose sum is σ = 1015144368. Its totient is φ = 987369984.

The previous prime is 1001220317. The next prime is 1001220349. The reversal of 1001220323 is 3230221001.

It is a happy number.

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

It is not a de Polignac number, because 1001220323 - 2¹⁴ = 1001203939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001220298 and 1001220307.

It is not an unprimeable number, because it can be changed into a prime (1001220823) 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, 9215 + ... + 45687.

It is an arithmetic number, because the mean of its divisors is an integer number (126893046).

Almost surely, 2^1001220323 is an apocalyptic number.

1001220323 is a deficient number, since it is larger than the sum of its proper divisors (13924045).

1001220323 is an equidigital number, since it uses as much as digits as its factorization.

1001220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36853.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1001220323 is about 31642.0657195449. The cubic root of 1001220323 is about 1000.4066089801.

Adding to 1001220323 its reverse (3230221001), we get a palindrome (4231441324).

The spelling of 1001220323 in words is "one billion, one million, two hundred twenty thousand, three hundred twenty-three".