20332112123 has 4 divisors (see below), whose sum is σ = 20366750040. Its totient is φ = 20297474208.

The previous prime is 20332112113. The next prime is 20332112137. The reversal of 20332112123 is 32121123302.

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 20332112123 - 2⁸ = 20332111867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20332112095 and 20332112104.

It is not an unprimeable number, because it can be changed into a prime (20332112113) 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, 17318078 + ... + 17319251.

It is an arithmetic number, because the mean of its divisors is an integer number (5091687510).

Almost surely, 2^20332112123 is an apocalyptic number.

20332112123 is a deficient number, since it is larger than the sum of its proper divisors (34637917).

20332112123 is an equidigital number, since it uses as much as digits as its factorization.

20332112123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34637916.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20332112123 its reverse (32121123302), we get a palindrome (52453235425).

The spelling of 20332112123 in words is "twenty billion, three hundred thirty-two million, one hundred twelve thousand, one hundred twenty-three".