1312432203 has 8 divisors (see below), whose sum is σ = 1750077648. Its totient is φ = 874870784.

The previous prime is 1312432169. The next prime is 1312432211. The reversal of 1312432203 is 3022342131.

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 1312432203 - 2⁹ = 1312431691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1312432203.

It is not an unprimeable number, because it can be changed into a prime (1312433203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45751 + ... + 68687.

It is an arithmetic number, because the mean of its divisors is an integer number (218759706).

Almost surely, 2^1312432203 is an apocalyptic number.

1312432203 is a deficient number, since it is larger than the sum of its proper divisors (437645445).

1312432203 is a wasteful number, since it uses less digits than its factorization.

1312432203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42013.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1312432203 is about 36227.5061658955. The cubic root of 1312432203 is about 1094.8609326944.

Adding to 1312432203 its reverse (3022342131), we get a palindrome (4334774334).

The spelling of 1312432203 in words is "one billion, three hundred twelve million, four hundred thirty-two thousand, two hundred three".