1312003322 has 24 divisors (see below), whose sum is σ = 2423980404. Its totient is φ = 529210752.

The previous prime is 1312003309. The next prime is 1312003361. The reversal of 1312003322 is 2233002131.

It can be written as a sum of positive squares in 2 ways, for example, as 1236295921 + 75707401 = 35161^2 + 8701^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 1312003322.

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 11 ways as a sum of consecutive naturals, for example, 392093 + ... + 395424.

Almost surely, 2^1312003322 is an apocalyptic number.

1312003322 is a deficient number, since it is larger than the sum of its proper divisors (1111977082).

1312003322 is a wasteful number, since it uses less digits than its factorization.

1312003322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 787550 (or 787543 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1312003322 is about 36221.5864092118. The cubic root of 1312003322 is about 1094.7416589245.

Adding to 1312003322 its reverse (2233002131), we get a palindrome (3545005453).

The spelling of 1312003322 in words is "one billion, three hundred twelve million, three thousand, three hundred twenty-two".