1326561023234 has 16 divisors (see below), whose sum is σ = 2034419269248. Its totient is φ = 648452387472.

The previous prime is 1326561023191. The next prime is 1326561023251. The reversal of 1326561023234 is 4323201656231.

It is a Curzon 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 7 ways as a sum of consecutive naturals, for example, 7694429 + ... + 7864944.

It is an arithmetic number, because the mean of its divisors is an integer number (127151204328).

Almost surely, 2^{1326561023234} is an apocalyptic number.

1326561023234 is a deficient number, since it is larger than the sum of its proper divisors (707858246014).

1326561023234 is a wasteful number, since it uses less digits than its factorization.

1326561023234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15560329.

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 1326561023234 its reverse (4323201656231), we get a palindrome (5649762679465).

The spelling of 1326561023234 in words is "one trillion, three hundred twenty-six billion, five hundred sixty-one million, twenty-three thousand, two hundred thirty-four".