1321322103 has 12 divisors (see below), whose sum is σ = 1952962440. Its totient is φ = 860395536.

The previous prime is 1321322077. The next prime is 1321322137. The reversal of 1321322103 is 3012231231.

It is not a de Polignac number, because 1321322103 - 2⁵ = 1321322071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321322183) by changing a digit.

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, 1706748 + ... + 1707521.

It is an arithmetic number, because the mean of its divisors is an integer number (162746870).

Almost surely, 2^1321322103 is an apocalyptic number.

1321322103 is a deficient number, since it is larger than the sum of its proper divisors (631640337).

1321322103 is a wasteful number, since it uses less digits than its factorization.

1321322103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3414318 (or 3414315 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1321322103 is about 36349.9945392018. The cubic root of 1321322103 is about 1097.3274246043.

Adding to 1321322103 its reverse (3012231231), we get a palindrome (4333553334).

The spelling of 1321322103 in words is "one billion, three hundred twenty-one million, three hundred twenty-two thousand, one hundred three".