1312102203 has 4 divisors (see below), whose sum is σ = 1749469608. Its totient is φ = 874734800.

The previous prime is 1312102199. The next prime is 1312102273. The reversal of 1312102203 is 3022012131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312102203 - 2² = 1312102199 is a prime.

It is a super-2 number, since 2×1312102203² = 3443224382234906418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312102273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 218683698 + ... + 218683703.

It is an arithmetic number, because the mean of its divisors is an integer number (437367402).

Almost surely, 2^1312102203 is an apocalyptic number.

1312102203 is a deficient number, since it is larger than the sum of its proper divisors (437367405).

1312102203 is an equidigital number, since it uses as much as digits as its factorization.

1312102203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437367404.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1312102203 is about 36222.9513292332. The cubic root of 1312102203 is about 1094.7691604887.

Adding to 1312102203 its reverse (3022012131), we get a palindrome (4334114334).

The spelling of 1312102203 in words is "one billion, three hundred twelve million, one hundred two thousand, two hundred three".