13020443123 has 8 divisors (see below), whose sum is σ = 13793848992. Its totient is φ = 12247870336.

The previous prime is 13020443081. The next prime is 13020443131. The reversal of 13020443123 is 32134402031.

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

It is a cyclic number.

It is not a de Polignac number, because 13020443123 - 2¹⁴ = 13020426739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13020443173) 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, 175940 + ... + 238737.

It is an arithmetic number, because the mean of its divisors is an integer number (1724231124).

Almost surely, 2^13020443123 is an apocalyptic number.

13020443123 is a deficient number, since it is larger than the sum of its proper divisors (773405869).

13020443123 is a wasteful number, since it uses less digits than its factorization.

13020443123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416541.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 13020443123 its reverse (32134402031), we get a palindrome (45154845154).

The spelling of 13020443123 in words is "thirteen billion, twenty million, four hundred forty-three thousand, one hundred twenty-three".