1340142040123 has 8 divisors (see below), whose sum is σ = 1388496595680. Its totient is φ = 1291930335360.

The previous prime is 1340142040093. The next prime is 1340142040219. The reversal of 1340142040123 is 3210402410431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1340142040123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1340142046123) 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, 35693598 + ... + 35731123.

It is an arithmetic number, because the mean of its divisors is an integer number (173562074460).

Almost surely, 2^{1340142040123} is an apocalyptic number.

1340142040123 is a deficient number, since it is larger than the sum of its proper divisors (48354555557).

1340142040123 is an equidigital number, since it uses as much as digits as its factorization.

1340142040123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71425397.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1340142040123 its reverse (3210402410431), we get a palindrome (4550544450554).

The spelling of 1340142040123 in words is "one trillion, three hundred forty billion, one hundred forty-two million, forty thousand, one hundred twenty-three".