1312103223 has 6 divisors (see below), whose sum is σ = 1895260224. Its totient is φ = 874735476.

The previous prime is 1312103201. The next prime is 1312103249. The reversal of 1312103223 is 3223012131.

1312103223 is a `hidden beast` number, since 131 + 210 + 322 + 3 = 666.

It is not a de Polignac number, because 1312103223 - 2¹⁰ = 1312102199 is a prime.

It is a super-2 number, since 2×1312103223² = 3443229735613975458, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312103196 and 1312103205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312103123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72894615 + ... + 72894632.

It is an arithmetic number, because the mean of its divisors is an integer number (315876704).

Almost surely, 2^1312103223 is an apocalyptic number.

1312103223 is a deficient number, since it is larger than the sum of its proper divisors (583157001).

1312103223 is a wasteful number, since it uses less digits than its factorization.

1312103223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145789253 (or 145789250 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1312103223 is about 36222.9654087017. The cubic root of 1312103223 is about 1094.7694441720.

Adding to 1312103223 its reverse (3223012131), we get a palindrome (4535115354).

The spelling of 1312103223 in words is "one billion, three hundred twelve million, one hundred three thousand, two hundred twenty-three".