1340321303023 has 4 divisors (see below), whose sum is σ = 1371491565928. Its totient is φ = 1309151040120.

The previous prime is 1340321302993. The next prime is 1340321303093. The reversal of 1340321303023 is 3203031230431.

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 1340321303023 - 2²¹ = 1340319205871 is a prime.

It is a super-2 number, since 2×1340321303023² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340321303093) 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, 15585131388 + ... + 15585131473.

It is an arithmetic number, because the mean of its divisors is an integer number (342872891482).

Almost surely, 2^{1340321303023} is an apocalyptic number.

1340321303023 is a deficient number, since it is larger than the sum of its proper divisors (31170262905).

1340321303023 is an equidigital number, since it uses as much as digits as its factorization.

1340321303023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31170262904.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 1340321303023 its reverse (3203031230431), we get a palindrome (4543352533454).

The spelling of 1340321303023 in words is "one trillion, three hundred forty billion, three hundred twenty-one million, three hundred three thousand, twenty-three".