1312122322103 has 4 divisors (see below), whose sum is σ = 1312603131840. Its totient is φ = 1311641512368.

The previous prime is 1312122322087. The next prime is 1312122322109. The reversal of 1312122322103 is 3012232212131.

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 1312122322103 - 2⁴ = 1312122322087 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 (1312122322109) 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, 240400775 + ... + 240406232.

It is an arithmetic number, because the mean of its divisors is an integer number (328150782960).

Almost surely, 2^{1312122322103} is an apocalyptic number.

1312122322103 is a deficient number, since it is larger than the sum of its proper divisors (480809737).

1312122322103 is an equidigital number, since it uses as much as digits as its factorization.

1312122322103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480809736.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1312122322103 its reverse (3012232212131), we get a palindrome (4324354534234).

The spelling of 1312122322103 in words is "one trillion, three hundred twelve billion, one hundred twenty-two million, three hundred twenty-two thousand, one hundred three".