13440401023 has 8 divisors (see below), whose sum is σ = 15612269600. Its totient is φ = 11331485280.

The previous prime is 13440400993. The next prime is 13440401047. The reversal of 13440401023 is 32010404431.

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 13440401023 - 2⁹ = 13440400511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13440400985 and 13440401003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440404023) 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 7 ways as a sum of consecutive naturals, for example, 15737748 + ... + 15738601.

It is an arithmetic number, because the mean of its divisors is an integer number (1951533700).

Almost surely, 2^13440401023 is an apocalyptic number.

13440401023 is a deficient number, since it is larger than the sum of its proper divisors (2171868577).

13440401023 is an equidigital number, since it uses as much as digits as its factorization.

13440401023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31476417.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 13440401023 its reverse (32010404431), we get a palindrome (45450805454).

The spelling of 13440401023 in words is "thirteen billion, four hundred forty million, four hundred one thousand, twenty-three".