1320252602 has 4 divisors (see below), whose sum is σ = 1980378906. Its totient is φ = 660126300.

The previous prime is 1320252599. The next prime is 1320252629. The reversal of 1320252602 is 2062520231.

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., 1179853801 + 140398801 = 34349^2 + 11849^2 .

It is an unprimeable number.

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, 330063149 + ... + 330063152.

Almost surely, 2^1320252602 is an apocalyptic number.

1320252602 is a deficient number, since it is larger than the sum of its proper divisors (660126304).

1320252602 is an equidigital number, since it uses as much as digits as its factorization.

1320252602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660126303.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1320252602 is about 36335.2804034866. The cubic root of 1320252602 is about 1097.0312794126.

Adding to 1320252602 its reverse (2062520231), we get a palindrome (3382772833).

The spelling of 1320252602 in words is "one billion, three hundred twenty million, two hundred fifty-two thousand, six hundred two".