1340040343223 has 16 divisors (see below), whose sum is σ = 1415831788800. Its totient is φ = 1264779406080.

The previous prime is 1340040343217. The next prime is 1340040343247. The reversal of 1340040343223 is 3223430400431.

It is a cyclic number.

It is not a de Polignac number, because 1340040343223 - 2³² = 1335745375927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340040343253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11636615 + ... + 11751207.

It is an arithmetic number, because the mean of its divisors is an integer number (88489486800).

Almost surely, 2^{1340040343223} is an apocalyptic number.

1340040343223 is a deficient number, since it is larger than the sum of its proper divisors (75791445577).

1340040343223 is a wasteful number, since it uses less digits than its factorization.

1340040343223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116902.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 1340040343223 its reverse (3223430400431), we get a palindrome (4563470743654).

The spelling of 1340040343223 in words is "one trillion, three hundred forty billion, forty million, three hundred forty-three thousand, two hundred twenty-three".