20043102123 has 48 divisors (see below), whose sum is σ = 32100157440. Its totient is φ = 11949235200.

The previous prime is 20043102089. The next prime is 20043102133. The reversal of 20043102123 is 32120134002.

20043102123 is a `hidden beast` number, since 20 + 0 + 431 + 0 + 212 + 3 = 666.

It is not a de Polignac number, because 20043102123 - 2⁸ = 20043101867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20043102096 and 20043102105.

It is not an unprimeable number, because it can be changed into a prime (20043102133) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3363915 + ... + 3369867.

It is an arithmetic number, because the mean of its divisors is an integer number (668753280).

Almost surely, 2^20043102123 is an apocalyptic number.

20043102123 is a deficient number, since it is larger than the sum of its proper divisors (12057055317).

20043102123 is a wasteful number, since it uses less digits than its factorization.

20043102123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6520 (or 6517 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20043102123 its reverse (32120134002), we get a palindrome (52163236125).

The spelling of 20043102123 in words is "twenty billion, forty-three million, one hundred two thousand, one hundred twenty-three".