1321193108 has 12 divisors (see below), whose sum is σ = 2323825812. Its totient is φ = 657242880.

The previous prime is 1321192997. The next prime is 1321193113. The reversal of 1321193108 is 8013911231.

It can be written as a sum of positive squares in 2 ways, for example, as 718883344 + 602309764 = 26812^2 + 24542^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 837533 + ... + 839108.

It is an arithmetic number, because the mean of its divisors is an integer number (193652151).

Almost surely, 2^1321193108 is an apocalyptic number.

It is an amenable number.

1321193108 is a deficient number, since it is larger than the sum of its proper divisors (1002632704).

1321193108 is a wasteful number, since it uses less digits than its factorization.

1321193108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676842 (or 1676840 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 1321193108 is about 36348.2201489977. The cubic root of 1321193108 is about 1097.2917143216.

The spelling of 1321193108 in words is "one billion, three hundred twenty-one million, one hundred ninety-three thousand, one hundred eight".