12001310231023 has 4 divisors (see below), whose sum is σ = 12523106328048. Its totient is φ = 11479514134000.

The previous prime is 12001310231021. The next prime is 12001310231129. The reversal of 12001310231023 is 32013201310021.

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 12001310231023 - 2¹ = 12001310231021 is a prime.

It is a super-2 number, since 2×12001310231023² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001310231021) 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, 260898048478 + ... + 260898048523.

It is an arithmetic number, because the mean of its divisors is an integer number (3130776582012).

Almost surely, 2^{12001310231023} is an apocalyptic number.

12001310231023 is a deficient number, since it is larger than the sum of its proper divisors (521796097025).

12001310231023 is an equidigital number, since it uses as much as digits as its factorization.

12001310231023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521796097024.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12001310231023 its reverse (32013201310021), we get a palindrome (44014511541044).

The spelling of 12001310231023 in words is "twelve trillion, one billion, three hundred ten million, two hundred thirty-one thousand, twenty-three".