20103323123 has 8 divisors (see below), whose sum is σ = 22923246528. Its totient is φ = 17465330304.

The previous prime is 20103323111. The next prime is 20103323147. The reversal of 20103323123 is 32132330102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20103323123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20103323095 and 20103323104.

It is not an unprimeable number, because it can be changed into a prime (20103323323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45482411 + ... + 45482852.

It is an arithmetic number, because the mean of its divisors is an integer number (2865405816).

Almost surely, 2^20103323123 is an apocalyptic number.

20103323123 is a deficient number, since it is larger than the sum of its proper divisors (2819923405).

20103323123 is a wasteful number, since it uses less digits than its factorization.

20103323123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90965293.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20103323123 its reverse (32132330102), we get a palindrome (52235653225).

The spelling of 20103323123 in words is "twenty billion, one hundred three million, three hundred twenty-three thousand, one hundred twenty-three".