20126334254123 has 32 divisors (see below), whose sum is σ = 21541647648000. Its totient is φ = 18747703497600.

The previous prime is 20126334254119. The next prime is 20126334254129. The reversal of 20126334254123 is 32145243362102.

It is a cyclic number.

It is not a de Polignac number, because 20126334254123 - 2² = 20126334254119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20126334254129) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 3194146073 + ... + 3194152373.

It is an arithmetic number, because the mean of its divisors is an integer number (673176489000).

Almost surely, 2^{20126334254123} is an apocalyptic number.

20126334254123 is a deficient number, since it is larger than the sum of its proper divisors (1415313393877).

20126334254123 is a wasteful number, since it uses less digits than its factorization.

20126334254123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10635.

The product of its (nonzero) digits is 207360, while the sum is 38.

The spelling of 20126334254123 in words is "twenty trillion, one hundred twenty-six billion, three hundred thirty-four million, two hundred fifty-four thousand, one hundred twenty-three".