1312100312103 has 12 divisors (see below), whose sum is σ = 2166006864528. Its totient is φ = 749771606880.

The previous prime is 1312100312101. The next prime is 1312100312137. The reversal of 1312100312103 is 3012130012131.

1312100312103 is a `hidden beast` number, since 131 + 210 + 0 + 312 + 10 + 3 = 666.

It is not a de Polignac number, because 1312100312103 - 2¹ = 1312100312101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312100312101) 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, 10413494478 + ... + 10413494603.

It is an arithmetic number, because the mean of its divisors is an integer number (180500572044).

Almost surely, 2^{1312100312103} is an apocalyptic number.

1312100312103 is a deficient number, since it is larger than the sum of its proper divisors (853906552425).

1312100312103 is a wasteful number, since it uses less digits than its factorization.

1312100312103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20826989094 (or 20826989091 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1312100312103 its reverse (3012130012131), we get a palindrome (4324230324234).

The spelling of 1312100312103 in words is "one trillion, three hundred twelve billion, one hundred million, three hundred twelve thousand, one hundred three".