1340422043105 has 4 divisors (see below), whose sum is σ = 1608506451732. Its totient is φ = 1072337634480.

The previous prime is 1340422043087. The next prime is 1340422043131. The reversal of 1340422043105 is 5013402240431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 868825323664 + 471596719441 = 932108^2 + 686729^2 .

It is not a de Polignac number, because 1340422043105 - 2¹⁸ = 1340421780961 is a prime.

It is a Duffinian 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 3 ways as a sum of consecutive naturals, for example, 134042204306 + ... + 134042204315.

It is an arithmetic number, because the mean of its divisors is an integer number (402126612933).

Almost surely, 2^{1340422043105} is an apocalyptic number.

It is an amenable number.

1340422043105 is a deficient number, since it is larger than the sum of its proper divisors (268084408627).

1340422043105 is an equidigital number, since it uses as much as digits as its factorization.

1340422043105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268084408626.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 1340422043105 its reverse (5013402240431), we get a palindrome (6353824283536).

The spelling of 1340422043105 in words is "one trillion, three hundred forty billion, four hundred twenty-two million, forty-three thousand, one hundred five".