1321106366 has 8 divisors (see below), whose sum is σ = 2085957480. Its totient is φ = 625787208.

The previous prime is 1321106357. The next prime is 1321106377. The reversal of 1321106366 is 6636011231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17382941 + ... + 17383016.

It is an arithmetic number, because the mean of its divisors is an integer number (260744685).

Almost surely, 2^1321106366 is an apocalyptic number.

1321106366 is a deficient number, since it is larger than the sum of its proper divisors (764851114).

1321106366 is a wasteful number, since it uses less digits than its factorization.

1321106366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34765978.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1321106366 is about 36347.0269210564. The cubic root of 1321106366 is about 1097.2676998253.

Adding to 1321106366 its reverse (6636011231), we get a palindrome (7957117597).

The spelling of 1321106366 in words is "one billion, three hundred twenty-one million, one hundred six thousand, three hundred sixty-six".