1321108675 has 12 divisors (see below), whose sum is σ = 1734538536. Its totient is φ = 994716800.

The previous prime is 1321108637. The next prime is 1321108721. The reversal of 1321108675 is 5768011231.

It is a happy number.

It is not a de Polignac number, because 1321108675 - 2⁹ = 1321108163 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321108675.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1553821 + ... + 1554670.

It is an arithmetic number, because the mean of its divisors is an integer number (144544878).

Almost surely, 2^1321108675 is an apocalyptic number.

1321108675 is a deficient number, since it is larger than the sum of its proper divisors (413429861).

1321108675 is a wasteful number, since it uses less digits than its factorization.

1321108675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3108518 (or 3108513 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 1321108675 is about 36347.0586843007. The cubic root of 1321108675 is about 1097.2683390849.

The spelling of 1321108675 in words is "one billion, three hundred twenty-one million, one hundred eight thousand, six hundred seventy-five".