1312023023 has 4 divisors (see below), whose sum is σ = 1320072408. Its totient is φ = 1303973640.

The previous prime is 1312023007. The next prime is 1312023077. The reversal of 1312023023 is 3203202131.

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 1312023023 - 2⁴ = 1312023007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312022992 and 1312023010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312020023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4024448 + ... + 4024773.

It is an arithmetic number, because the mean of its divisors is an integer number (330018102).

Almost surely, 2^1312023023 is an apocalyptic number.

1312023023 is a deficient number, since it is larger than the sum of its proper divisors (8049385).

1312023023 is an equidigital number, since it uses as much as digits as its factorization.

1312023023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8049384.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1312023023 is about 36221.8583592836. The cubic root of 1312023023 is about 1094.7471384324.

Adding to 1312023023 its reverse (3203202131), we get a palindrome (4515225154).

The spelling of 1312023023 in words is "one billion, three hundred twelve million, twenty-three thousand, twenty-three".