1002231223 has 4 divisors (see below), whose sum is σ = 1145407120. Its totient is φ = 859055328.

The previous prime is 1002231169. The next prime is 1002231227. The reversal of 1002231223 is 3221322001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002231223 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002231197 and 1002231206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002231227) 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, 71587938 + ... + 71587951.

It is an arithmetic number, because the mean of its divisors is an integer number (286351780).

Almost surely, 2^1002231223 is an apocalyptic number.

1002231223 is a deficient number, since it is larger than the sum of its proper divisors (143175897).

1002231223 is an equidigital number, since it uses as much as digits as its factorization.

1002231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143175896.

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

The square root of 1002231223 is about 31658.0356781655. The cubic root of 1002231223 is about 1000.7431885340.

Adding to 1002231223 its reverse (3221322001), we get a palindrome (4223553224).

The spelling of 1002231223 in words is "one billion, two million, two hundred thirty-one thousand, two hundred twenty-three".