1312312133203 has 8 divisors (see below), whose sum is σ = 1340505592128. Its totient is φ = 1284130004544.

The previous prime is 1312312133147. The next prime is 1312312133221. The reversal of 1312312133203 is 3023312132131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312312133203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312312133263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2598226 + ... + 3061927.

It is an arithmetic number, because the mean of its divisors is an integer number (167563199016).

Almost surely, 2^{1312312133203} is an apocalyptic number.

1312312133203 is a deficient number, since it is larger than the sum of its proper divisors (28193458925).

1312312133203 is an equidigital number, since it uses as much as digits as its factorization.

1312312133203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5665133.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1312312133203 its reverse (3023312132131), we get a palindrome (4335624265334).

The spelling of 1312312133203 in words is "one trillion, three hundred twelve billion, three hundred twelve million, one hundred thirty-three thousand, two hundred three".