1340444030023 has 8 divisors (see below), whose sum is σ = 1531952524800. Its totient is φ = 1148939657880.

The previous prime is 1340444030017. The next prime is 1340444030063. The reversal of 1340444030023 is 3200304440431.

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

It is not a de Polignac number, because 1340444030023 - 2⁹ = 1340444029511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1340444029973 and 1340444030000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340444030063) 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 7 ways as a sum of consecutive naturals, for example, 299323 + ... + 1664476.

It is an arithmetic number, because the mean of its divisors is an integer number (191494065600).

Almost surely, 2^{1340444030023} is an apocalyptic number.

1340444030023 is a deficient number, since it is larger than the sum of its proper divisors (191508494777).

1340444030023 is an equidigital number, since it uses as much as digits as its factorization.

1340444030023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061317.

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 1340444030023 its reverse (3200304440431), we get a palindrome (4540748470454).

The spelling of 1340444030023 in words is "one trillion, three hundred forty billion, four hundred forty-four million, thirty thousand, twenty-three".