1321104236 has 12 divisors (see below), whose sum is σ = 2312479512. Its totient is φ = 660395808.

The previous prime is 1321104209. The next prime is 1321104241. The reversal of 1321104236 is 6324011231.

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, 18905 + ... + 54768.

It is an arithmetic number, because the mean of its divisors is an integer number (192706626).

Almost surely, 2^1321104236 is an apocalyptic number.

It is an amenable number.

1321104236 is a deficient number, since it is larger than the sum of its proper divisors (991375276).

1321104236 is a wasteful number, since it uses less digits than its factorization.

1321104236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78160 (or 78158 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1321104236 is about 36346.9976201611. The cubic root of 1321104236 is about 1097.2671101222.

Adding to 1321104236 its reverse (6324011231), we get a palindrome (7645115467).

The spelling of 1321104236 in words is "one billion, three hundred twenty-one million, one hundred four thousand, two hundred thirty-six".