1321183853 has 8 divisors (see below), whose sum is σ = 1442854080. Its totient is φ = 1199774080.

The previous prime is 1321183817. The next prime is 1321183859. The reversal of 1321183853 is 3583811231.

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

It is a cyclic number.

It is not a de Polignac number, because 1321183853 - 2⁶ = 1321183789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321183859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54425 + ... + 74862.

It is an arithmetic number, because the mean of its divisors is an integer number (180356760).

Almost surely, 2^1321183853 is an apocalyptic number.

It is an amenable number.

1321183853 is a deficient number, since it is larger than the sum of its proper divisors (121670227).

1321183853 is a wasteful number, since it uses less digits than its factorization.

1321183853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130227.

The product of its digits is 17280, while the sum is 35.

The square root of 1321183853 is about 36348.0928385521. The cubic root of 1321183853 is about 1097.2891521278.

The spelling of 1321183853 in words is "one billion, three hundred twenty-one million, one hundred eighty-three thousand, eight hundred fifty-three".