1312041023 has 4 divisors (see below), whose sum is σ = 1336796568. Its totient is φ = 1287285480.

The previous prime is 1312041019. The next prime is 1312041061. The reversal of 1312041023 is 3201402131.

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 1312041023 - 2² = 1312041019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312040992 and 1312041010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312041013) 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, 12377693 + ... + 12377798.

It is an arithmetic number, because the mean of its divisors is an integer number (334199142).

Almost surely, 2^1312041023 is an apocalyptic number.

1312041023 is a deficient number, since it is larger than the sum of its proper divisors (24755545).

1312041023 is an equidigital number, since it uses as much as digits as its factorization.

1312041023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24755544.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1312041023 is about 36222.1068271850. The cubic root of 1312041023 is about 1094.7521447872.

Adding to 1312041023 its reverse (3201402131), we get a palindrome (4513443154).

The spelling of 1312041023 in words is "one billion, three hundred twelve million, forty-one thousand, twenty-three".