1312130023 has 4 divisors (see below), whose sum is σ = 1389314160. Its totient is φ = 1234945888.

The previous prime is 1312129933. The next prime is 1312130033. The reversal of 1312130023 is 3200312131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3200312131 = 293 ⋅10922567.

It is a cyclic number.

It is not a de Polignac number, because 1312130023 - 2²⁵ = 1278575591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312129979 and 1312130006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312130033) 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, 38592043 + ... + 38592076.

It is an arithmetic number, because the mean of its divisors is an integer number (347328540).

Almost surely, 2^1312130023 is an apocalyptic number.

1312130023 is a deficient number, since it is larger than the sum of its proper divisors (77184137).

1312130023 is an equidigital number, since it uses as much as digits as its factorization.

1312130023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77184136.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1312130023 is about 36223.3353378730. The cubic root of 1312130023 is about 1094.7768977576.

Adding to 1312130023 its reverse (3200312131), we get a palindrome (4512442154).

The spelling of 1312130023 in words is "one billion, three hundred twelve million, one hundred thirty thousand, twenty-three".