1002323198 has 4 divisors (see below), whose sum is σ = 1503484800. Its totient is φ = 501161598.

The previous prime is 1002323197. The next prime is 1002323239. The reversal of 1002323198 is 8913232001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8913232001 = 149 ⋅59820349.

It is a self number, because there is not a number n which added to its sum of digits gives 1002323198.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002323191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 250580798 + ... + 250580801.

It is an arithmetic number, because the mean of its divisors is an integer number (375871200).

Almost surely, 2^1002323198 is an apocalyptic number.

1002323198 is a deficient number, since it is larger than the sum of its proper divisors (501161602).

1002323198 is an equidigital number, since it uses as much as digits as its factorization.

1002323198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501161601.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 1002323198 is about 31659.4882776080. The cubic root of 1002323198 is about 1000.7738004118.

Adding to 1002323198 its reverse (8913232001), we get a palindrome (9915555199).

The spelling of 1002323198 in words is "one billion, two million, three hundred twenty-three thousand, one hundred ninety-eight".