1205134242034 has 16 divisors (see below), whose sum is σ = 1887105771072. Its totient is φ = 576121448848.

The previous prime is 1205134242023. The next prime is 1205134242071. The reversal of 1205134242034 is 4302424315021.

It is a junction number, because it is equal to n+sod(n) for n = 1205134241987 and 1205134242005.

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, 5507464 + ... + 5722099.

It is an arithmetic number, because the mean of its divisors is an integer number (117944110692).

Almost surely, 2^{1205134242034} is an apocalyptic number.

1205134242034 is a deficient number, since it is larger than the sum of its proper divisors (681971529038).

1205134242034 is a wasteful number, since it uses less digits than its factorization.

1205134242034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11231921.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 1205134242034 its reverse (4302424315021), we get a palindrome (5507558557055).

The spelling of 1205134242034 in words is "one trillion, two hundred five billion, one hundred thirty-four million, two hundred forty-two thousand, thirty-four".