1312133199 has 16 divisors (see below), whose sum is σ = 1907942400. Its totient is φ = 797243616.

The previous prime is 1312133191. The next prime is 1312133213. The reversal of 1312133199 is 9913312131.

It is not a de Polignac number, because 1312133199 - 2³ = 1312133191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312133191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209859 + ... + 216020.

It is an arithmetic number, because the mean of its divisors is an integer number (119246400).

Almost surely, 2^1312133199 is an apocalyptic number.

1312133199 is a deficient number, since it is larger than the sum of its proper divisors (595809201).

1312133199 is a wasteful number, since it uses less digits than its factorization.

1312133199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425974.

The product of its digits is 4374, while the sum is 33.

The square root of 1312133199 is about 36223.3791769901. The cubic root of 1312133199 is about 1094.7777810564. Note that the first 4 decimals are identical.

The spelling of 1312133199 in words is "one billion, three hundred twelve million, one hundred thirty-three thousand, one hundred ninety-nine".