1312131303 has 48 divisors (see below), whose sum is σ = 2269363200. Its totient is φ = 714692160.

The previous prime is 1312131277. The next prime is 1312131311. The reversal of 1312131303 is 3031312131.

It is a happy number.

1312131303 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1312131303 - 2⁸ = 1312131047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312131343) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 139788 + ... + 148878.

It is an arithmetic number, because the mean of its divisors is an integer number (47278400).

Almost surely, 2^1312131303 is an apocalyptic number.

1312131303 is a deficient number, since it is larger than the sum of its proper divisors (957231897).

1312131303 is a wasteful number, since it uses less digits than its factorization.

1312131303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9212 (or 9209 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1312131303 is about 36223.3530060374. The cubic root of 1312131303 is about 1094.7772537472. Note that the first 3 decimals are identical.

Adding to 1312131303 its reverse (3031312131), we get a palindrome (4343443434).

The spelling of 1312131303 in words is "one billion, three hundred twelve million, one hundred thirty-one thousand, three hundred three".