1183232813 has 8 divisors (see below), whose sum is σ = 1353448128. Its totient is φ = 1013313024.

The previous prime is 1183232807. The next prime is 1183232819. The reversal of 1183232813 is 3182323811.

It is an interprime number because it is at equal distance from previous prime (1183232807) and next prime (1183232819).

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 1183232813 - 2¹⁰ = 1183231789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1183232813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1183232819) 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, 65231 + ... + 81372.

It is an arithmetic number, because the mean of its divisors is an integer number (169181016).

Almost surely, 2^1183232813 is an apocalyptic number.

It is an amenable number.

1183232813 is a deficient number, since it is larger than the sum of its proper divisors (170215315).

1183232813 is a wasteful number, since it uses less digits than its factorization.

1183232813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147763.

The product of its digits is 6912, while the sum is 32.

The square root of 1183232813 is about 34398.1513020685. The cubic root of 1183232813 is about 1057.6859490406.

The spelling of 1183232813 in words is "one billion, one hundred eighty-three million, two hundred thirty-two thousand, eight hundred thirteen".