1342254121405 has 4 divisors (see below), whose sum is σ = 1610704945692. Its totient is φ = 1073803297120.

The previous prime is 1342254121363. The next prime is 1342254121423. The reversal of 1342254121405 is 5041214522431.

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 890792417124 + 451461704281 = 943818^2 + 671909^2 .

It is not a de Polignac number, because 1342254121405 - 2²⁹ = 1341717250493 is a prime.

It is a super-2 number, since 2×1342254121405² (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 (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 134225412136 + ... + 134225412145.

It is an arithmetic number, because the mean of its divisors is an integer number (402676236423).

Almost surely, 2^{1342254121405} is an apocalyptic number.

It is an amenable number.

1342254121405 is a deficient number, since it is larger than the sum of its proper divisors (268450824287).

1342254121405 is an equidigital number, since it uses as much as digits as its factorization.

1342254121405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268450824286.

The product of its (nonzero) digits is 38400, while the sum is 34.

Adding to 1342254121405 its reverse (5041214522431), we get a palindrome (6383468643836).

The spelling of 1342254121405 in words is "one trillion, three hundred forty-two billion, two hundred fifty-four million, one hundred twenty-one thousand, four hundred five".