1312322203 has 12 divisors (see below), whose sum is σ = 1372228128. Its totient is φ = 1254447600.

The previous prime is 1312322171. The next prime is 1312322243. The reversal of 1312322203 is 3022232131.

It is not a de Polignac number, because 1312322203 - 2⁵ = 1312322171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312322243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79353 + ... + 94453.

It is an arithmetic number, because the mean of its divisors is an integer number (114352344).

Almost surely, 2^1312322203 is an apocalyptic number.

1312322203 is a deficient number, since it is larger than the sum of its proper divisors (59905925).

1312322203 is an equidigital number, since it uses as much as digits as its factorization.

1312322203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15234 (or 15191 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1312322203 is about 36225.9879506412. The cubic root of 1312322203 is about 1094.8303436686.

Adding to 1312322203 its reverse (3022232131), we get a palindrome (4334554334).

The spelling of 1312322203 in words is "one billion, three hundred twelve million, three hundred twenty-two thousand, two hundred three".