1001223003 has 16 divisors (see below), whose sum is σ = 1457675136. Its totient is φ = 606239040.

The previous prime is 1001223001. The next prime is 1001223017. The reversal of 1001223003 is 3003221001.

It is a happy number.

It is not a de Polignac number, because 1001223003 - 2¹ = 1001223001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001223003.

It is not an unprimeable number, because it can be changed into a prime (1001223001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23551 + ... + 50567.

It is an arithmetic number, because the mean of its divisors is an integer number (91104696).

Almost surely, 2^1001223003 is an apocalyptic number.

1001223003 is a deficient number, since it is larger than the sum of its proper divisors (456452133).

1001223003 is a wasteful number, since it uses less digits than its factorization.

1001223003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28154.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1001223003 is about 31642.1080682056. The cubic root of 1001223003 is about 1000.4075015866.

Adding to 1001223003 its reverse (3003221001), we get a palindrome (4004444004).

The spelling of 1001223003 in words is "one billion, one million, two hundred twenty-three thousand, three".