1312031130103 has 4 divisors (see below), whose sum is σ = 1320388016440. Its totient is φ = 1303674243768.

The previous prime is 1312031130079. The next prime is 1312031130121. The reversal of 1312031130103 is 3010311302131.

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 1312031130103 - 2²⁹ = 1311494259191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312031133103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4178442933 + ... + 4178443246.

It is an arithmetic number, because the mean of its divisors is an integer number (330097004110).

Almost surely, 2^{1312031130103} is an apocalyptic number.

1312031130103 is a deficient number, since it is larger than the sum of its proper divisors (8356886337).

1312031130103 is an equidigital number, since it uses as much as digits as its factorization.

1312031130103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8356886336.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 1312031130103 its reverse (3010311302131), we get a palindrome (4322342432234).

The spelling of 1312031130103 in words is "one trillion, three hundred twelve billion, thirty-one million, one hundred thirty thousand, one hundred three".