1311420302 has 32 divisors (see below), whose sum is σ = 2078334720. Its totient is φ = 619407360.

The previous prime is 1311420293. The next prime is 1311420323. The reversal of 1311420302 is 2030241131.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 1704974 + ... + 1705742.

It is an arithmetic number, because the mean of its divisors is an integer number (64947960).

Almost surely, 2^1311420302 is an apocalyptic number.

1311420302 is a deficient number, since it is larger than the sum of its proper divisors (766914418).

1311420302 is a wasteful number, since it uses less digits than its factorization.

1311420302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1208.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1311420302 is about 36213.5375515842. The cubic root of 1311420302 is about 1094.5794767013.

Adding to 1311420302 its reverse (2030241131), we get a palindrome (3341661433).

The spelling of 1311420302 in words is "one billion, three hundred eleven million, four hundred twenty thousand, three hundred two".