20120104555323 has 4 divisors (see below), whose sum is σ = 26826806073768. Its totient is φ = 13413403036880.

The previous prime is 20120104555283. The next prime is 20120104555339. The reversal of 20120104555323 is 32355540102102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20120104555323 - 2⁶ = 20120104555259 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20120104555723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3353350759218 + ... + 3353350759223.

It is an arithmetic number, because the mean of its divisors is an integer number (6706701518442).

Almost surely, 2^{20120104555323} is an apocalyptic number.

20120104555323 is a deficient number, since it is larger than the sum of its proper divisors (6706701518445).

20120104555323 is an equidigital number, since it uses as much as digits as its factorization.

20120104555323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706701518444.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 20120104555323 its reverse (32355540102102), we get a palindrome (52475644657425).

The spelling of 20120104555323 in words is "twenty trillion, one hundred twenty billion, one hundred four million, five hundred fifty-five thousand, three hundred twenty-three".