20325454123 has 16 divisors (see below), whose sum is σ = 22091894496. Its totient is φ = 18588545280.

The previous prime is 20325454081. The next prime is 20325454151. The reversal of 20325454123 is 32145452302.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20325454123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20325454153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 920553 + ... + 942373.

It is an arithmetic number, because the mean of its divisors is an integer number (1380743406).

Almost surely, 2^20325454123 is an apocalyptic number.

20325454123 is a deficient number, since it is larger than the sum of its proper divisors (1766440373).

20325454123 is a wasteful number, since it uses less digits than its factorization.

20325454123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22494.

The product of its (nonzero) digits is 28800, while the sum is 31.

The spelling of 20325454123 in words is "twenty billion, three hundred twenty-five million, four hundred fifty-four thousand, one hundred twenty-three".