1002531223 has 2 divisors, whose sum is σ = 1002531224. Its totient is φ = 1002531222.

The previous prime is 1002531217. The next prime is 1002531253. The reversal of 1002531223 is 3221352001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002531223 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002531223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1002531253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501265611 + 501265612.

It is an arithmetic number, because the mean of its divisors is an integer number (501265612).

Almost surely, 2^1002531223 is an apocalyptic number.

1002531223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002531223 is an equidigital number, since it uses as much as digits as its factorization.

1002531223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 1002531223 is about 31662.7734571689. The cubic root of 1002531223 is about 1000.8430301005.

Adding to 1002531223 its reverse (3221352001), we get a palindrome (4223883224).

The spelling of 1002531223 in words is "one billion, two million, five hundred thirty-one thousand, two hundred twenty-three".