20103321123 has 16 divisors (see below), whose sum is σ = 30227218560. Its totient is φ = 13202179848.

The previous prime is 20103321107. The next prime is 20103321137. The reversal of 20103321123 is 32112330102.

It is not a de Polignac number, because 20103321123 - 2⁴ = 20103321107 is a prime.

It is a super-3 number, since 3×20103321123³ (a number of 32 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 20103321096 and 20103321105.

It is not an unprimeable number, because it can be changed into a prime (20103321103) 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, 5554665 + ... + 5558282.

It is an arithmetic number, because the mean of its divisors is an integer number (1889201160).

Almost surely, 2^20103321123 is an apocalyptic number.

20103321123 is a deficient number, since it is larger than the sum of its proper divisors (10123897437).

20103321123 is a wasteful number, since it uses less digits than its factorization.

20103321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11113023 (or 11113017 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20103321123 its reverse (32112330102), we get a palindrome (52215651225).

The spelling of 20103321123 in words is "twenty billion, one hundred three million, three hundred twenty-one thousand, one hundred twenty-three".