1331312122203 has 12 divisors (see below), whose sum is σ = 2064892271400. Its totient is φ = 760749784032.

The previous prime is 1331312122187. The next prime is 1331312122213. The reversal of 1331312122203 is 3022212131331.

It is not a de Polignac number, because 1331312122203 - 2⁴ = 1331312122187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1331312122213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4528272378 + ... + 4528272671.

It is an arithmetic number, because the mean of its divisors is an integer number (172074355950).

Almost surely, 2^{1331312122203} is an apocalyptic number.

1331312122203 is a deficient number, since it is larger than the sum of its proper divisors (733580149197).

1331312122203 is an equidigital number, since it uses as much as digits as its factorization.

1331312122203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9056545066 (or 9056545059 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 1331312122203 its reverse (3022212131331), we get a palindrome (4353524253534).

The spelling of 1331312122203 in words is "one trillion, three hundred thirty-one billion, three hundred twelve million, one hundred twenty-two thousand, two hundred three".