12400311023 has 8 divisors (see below), whose sum is σ = 12991372800. Its totient is φ = 11821190040.

The previous prime is 12400310987. The next prime is 12400311041. The reversal of 12400311023 is 32011300421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12400311023 - 2²⁶ = 12333202159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12400310992 and 12400311010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12400311073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2983073 + ... + 2987226.

It is an arithmetic number, because the mean of its divisors is an integer number (1623921600).

Almost surely, 2^12400311023 is an apocalyptic number.

12400311023 is a deficient number, since it is larger than the sum of its proper divisors (591061777).

12400311023 is an equidigital number, since it uses as much as digits as its factorization.

12400311023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5970397.

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

Adding to 12400311023 its reverse (32011300421), we get a palindrome (44411611444).

The spelling of 12400311023 in words is "twelve billion, four hundred million, three hundred eleven thousand, twenty-three".