1312134223 has 2 divisors, whose sum is σ = 1312134224. Its totient is φ = 1312134222.

The previous prime is 1312134221. The next prime is 1312134233. The reversal of 1312134223 is 3224312131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312134223 - 2¹ = 1312134221 is a prime.

Together with 1312134221, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1312134194 and 1312134203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312134221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656067111 + 656067112.

It is an arithmetic number, because the mean of its divisors is an integer number (656067112).

Almost surely, 2^1312134223 is an apocalyptic number.

1312134223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312134223 is an equidigital number, since it uses as much as digits as its factorization.

1312134223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

The square root of 1312134223 is about 36223.3933115052. The cubic root of 1312134223 is about 1094.7780658477.

Adding to 1312134223 its reverse (3224312131), we get a palindrome (4536446354).

The spelling of 1312134223 in words is "one billion, three hundred twelve million, one hundred thirty-four thousand, two hundred twenty-three".