1323021002 has 4 divisors (see below), whose sum is σ = 1984531506. Its totient is φ = 661510500.

The previous prime is 1323020999. The next prime is 1323021013. The reversal of 1323021002 is 2001203231.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 740329681 + 582691321 = 27209^2 + 24139^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 330755249 + ... + 330755252.

Almost surely, 2^1323021002 is an apocalyptic number.

1323021002 is a deficient number, since it is larger than the sum of its proper divisors (661510504).

1323021002 is an equidigital number, since it uses as much as digits as its factorization.

1323021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661510503.

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

The square root of 1323021002 is about 36373.3556604281. The cubic root of 1323021002 is about 1097.7975219511.

Adding to 1323021002 its reverse (2001203231), we get a palindrome (3324224233).

The spelling of 1323021002 in words is "one billion, three hundred twenty-three million, twenty-one thousand, two".