1243136344342 has 8 divisors (see below), whose sum is σ = 1864873011600. Its totient is φ = 621512007144.

The previous prime is 1243136344339. The next prime is 1243136344361. The reversal of 1243136344342 is 2434436313421.

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 = 1243136344295 and 1243136344304.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28054842 + ... + 28099117.

It is an arithmetic number, because the mean of its divisors is an integer number (233109126450).

Almost surely, 2^{1243136344342} is an apocalyptic number.

1243136344342 is a deficient number, since it is larger than the sum of its proper divisors (621736667258).

1243136344342 is a wasteful number, since it uses less digits than its factorization.

1243136344342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56165030.

The product of its digits is 497664, while the sum is 40.

The spelling of 1243136344342 in words is "one trillion, two hundred forty-three billion, one hundred thirty-six million, three hundred forty-four thousand, three hundred forty-two".