20123332123 has 12 divisors (see below), whose sum is σ = 21677790672. Its totient is φ = 18672832640.

The previous prime is 20123332121. The next prime is 20123332127. The reversal of 20123332123 is 32123332102.

It is not a de Polignac number, because 20123332123 - 2¹ = 20123332121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20123332094 and 20123332103.

It is not an unprimeable number, because it can be changed into a prime (20123332121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 469840 + ... + 510877.

It is an arithmetic number, because the mean of its divisors is an integer number (1806482556).

Almost surely, 2^20123332123 is an apocalyptic number.

20123332123 is a deficient number, since it is larger than the sum of its proper divisors (1554458549).

20123332123 is an equidigital number, since it uses as much as digits as its factorization.

20123332123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980822 (or 980805 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 20123332123 its reverse (32123332102), we get a palindrome (52246664225).

The spelling of 20123332123 in words is "twenty billion, one hundred twenty-three million, three hundred thirty-two thousand, one hundred twenty-three".