1312311222103 has 64 divisors (see below), whose sum is σ = 1635895296000. Its totient is φ = 1028968012800.

The previous prime is 1312311222071. The next prime is 1312311222149. The reversal of 1312311222103 is 3012221132131.

It is not a de Polignac number, because 1312311222103 - 2⁵ = 1312311222071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312311222163) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 40092178 + ... + 40124896.

It is an arithmetic number, because the mean of its divisors is an integer number (25560864000).

Almost surely, 2^{1312311222103} is an apocalyptic number.

1312311222103 is a deficient number, since it is larger than the sum of its proper divisors (323584073897).

1312311222103 is a wasteful number, since it uses less digits than its factorization.

1312311222103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32936.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1312311222103 its reverse (3012221132131), we get a palindrome (4324532354234).

The spelling of 1312311222103 in words is "one trillion, three hundred twelve billion, three hundred eleven million, two hundred twenty-two thousand, one hundred three".