1183663121 has 8 divisors (see below), whose sum is σ = 1248448320. Its totient is φ = 1119126672.

The previous prime is 1183663079. The next prime is 1183663123. The reversal of 1183663121 is 1213663811.

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 1183663121 - 2¹⁰ = 1183662097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1183663123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52370 + ... + 71483.

It is an arithmetic number, because the mean of its divisors is an integer number (156056040).

Almost surely, 2^1183663121 is an apocalyptic number.

It is an amenable number.

1183663121 is a deficient number, since it is larger than the sum of its proper divisors (64785199).

1183663121 is a wasteful number, since it uses less digits than its factorization.

1183663121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124375.

The product of its digits is 5184, while the sum is 32.

The square root of 1183663121 is about 34404.4055463832. The cubic root of 1183663121 is about 1057.8141502306.

The spelling of 1183663121 in words is "one billion, one hundred eighty-three million, six hundred sixty-three thousand, one hundred twenty-one".