1340351122405 has 8 divisors (see below), whose sum is σ = 1645826494752. Its totient is φ = 1047344132688.

The previous prime is 1340351122387. The next prime is 1340351122447. The reversal of 1340351122405 is 5042211530431.

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-1340351122405 is a prime.

It is a super-2 number, since 2×1340351122405² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 3117095419 + ... + 3117095848.

It is an arithmetic number, because the mean of its divisors is an integer number (205728311844).

Almost surely, 2^{1340351122405} is an apocalyptic number.

It is an amenable number.

1340351122405 is a deficient number, since it is larger than the sum of its proper divisors (305475372347).

1340351122405 is an equidigital number, since it uses as much as digits as its factorization.

1340351122405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6234191315.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 1340351122405 its reverse (5042211530431), we get a palindrome (6382562652836).

The spelling of 1340351122405 in words is "one trillion, three hundred forty billion, three hundred fifty-one million, one hundred twenty-two thousand, four hundred five".