1361540821342 has 8 divisors (see below), whose sum is σ = 2199412096056. Its totient is φ = 628403455992.

The previous prime is 1361540821301. The next prime is 1361540821393. The reversal of 1361540821342 is 2431280451631.

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

It is a junction number, because it is equal to n+sod(n) for n = 1361540821295 and 1361540821304.

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, 26183477308 + ... + 26183477359.

It is an arithmetic number, because the mean of its divisors is an integer number (274926512007).

Almost surely, 2^{1361540821342} is an apocalyptic number.

1361540821342 is a deficient number, since it is larger than the sum of its proper divisors (837871274714).

1361540821342 is a wasteful number, since it uses less digits than its factorization.

1361540821342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52366954682.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 1361540821342 in words is "one trillion, three hundred sixty-one billion, five hundred forty million, eight hundred twenty-one thousand, three hundred forty-two".