13323220123 has 4 divisors (see below), whose sum is σ = 13390850880. Its totient is φ = 13255589368.

The previous prime is 13323220121. The next prime is 13323220129. The reversal of 13323220123 is 32102232331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32102232331 = 13 ⋅2469402487.

It is a cyclic number.

It is not a de Polignac number, because 13323220123 - 2¹ = 13323220121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13323220094 and 13323220103.

It is not an unprimeable number, because it can be changed into a prime (13323220121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33815083 + ... + 33815476.

It is an arithmetic number, because the mean of its divisors is an integer number (3347712720).

Almost surely, 2^13323220123 is an apocalyptic number.

13323220123 is a deficient number, since it is larger than the sum of its proper divisors (67630757).

13323220123 is an equidigital number, since it uses as much as digits as its factorization.

13323220123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67630756.

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

Adding to 13323220123 its reverse (32102232331), we get a palindrome (45425452454).

The spelling of 13323220123 in words is "thirteen billion, three hundred twenty-three million, two hundred twenty thousand, one hundred twenty-three".