1312232323103 has 4 divisors (see below), whose sum is σ = 1413173271048. Its totient is φ = 1211291375160.

The previous prime is 1312232323099. The next prime is 1312232323111. The reversal of 1312232323103 is 3013232322131.

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 1312232323103 - 2² = 1312232323099 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 (1312232323183) 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, 50470473953 + ... + 50470473978.

It is an arithmetic number, because the mean of its divisors is an integer number (353293317762).

Almost surely, 2^{1312232323103} is an apocalyptic number.

1312232323103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1312232323103 is a deficient number, since it is larger than the sum of its proper divisors (100940947945).

1312232323103 is a wasteful number, since it uses less digits than its factorization.

1312232323103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100940947944.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1312232323103 its reverse (3013232322131), we get a palindrome (4325464645234).

The spelling of 1312232323103 in words is "one trillion, three hundred twelve billion, two hundred thirty-two million, three hundred twenty-three thousand, one hundred three".