20032102123 has 12 divisors (see below), whose sum is σ = 22434212304. Its totient is φ = 17867392400.

The previous prime is 20032102121. The next prime is 20032102151. The reversal of 20032102123 is 32120123002.

It is not a de Polignac number, because 20032102123 - 2¹ = 20032102121 is a prime.

It is a super-2 number, since 2×20032102123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20032102097 and 20032102106.

It is not an unprimeable number, because it can be changed into a prime (20032102121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1555423 + ... + 1568248.

It is an arithmetic number, because the mean of its divisors is an integer number (1869517692).

Almost surely, 2^20032102123 is an apocalyptic number.

20032102123 is a deficient number, since it is larger than the sum of its proper divisors (2402110181).

20032102123 is a wasteful number, since it uses less digits than its factorization.

20032102123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3123746 (or 3123735 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20032102123 its reverse (32120123002), we get a palindrome (52152225125).

The spelling of 20032102123 in words is "twenty billion, thirty-two million, one hundred two thousand, one hundred twenty-three".