1312322023 has 4 divisors (see below), whose sum is σ = 1320680920. Its totient is φ = 1303963128.

The previous prime is 1312322003. The next prime is 1312322027. The reversal of 1312322023 is 3202232131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312322023 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 (1312322027) 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 3 ways as a sum of consecutive naturals, for example, 4179213 + ... + 4179526.

It is an arithmetic number, because the mean of its divisors is an integer number (330170230).

Almost surely, 2^1312322023 is an apocalyptic number.

1312322023 is a deficient number, since it is larger than the sum of its proper divisors (8358897).

1312322023 is an equidigital number, since it uses as much as digits as its factorization.

1312322023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8358896.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1312322023 is about 36225.9854662368. The cubic root of 1312322023 is about 1094.8302936125.

Adding to 1312322023 its reverse (3202232131), we get a palindrome (4514554154).

The spelling of 1312322023 in words is "one billion, three hundred twelve million, three hundred twenty-two thousand, twenty-three".