13211123123 has 8 divisors (see below), whose sum is σ = 14413291200. Its totient is φ = 12009147880.

The previous prime is 13211123087. The next prime is 13211123131. The reversal of 13211123123 is 32132111231.

It is a happy number.

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 13211123123 - 2⁶ = 13211123059 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13211123095 and 13211123104.

It is not an unprimeable number, because it can be changed into a prime (13211173123) 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, 120836 + ... + 202542.

It is an arithmetic number, because the mean of its divisors is an integer number (1801661400).

Almost surely, 2^13211123123 is an apocalyptic number.

13211123123 is a deficient number, since it is larger than the sum of its proper divisors (1202168077).

13211123123 is a wasteful number, since it uses less digits than its factorization.

13211123123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96417.

The product of its digits is 216, while the sum is 20.

Adding to 13211123123 its reverse (32132111231), we get a palindrome (45343234354).

The spelling of 13211123123 in words is "thirteen billion, two hundred eleven million, one hundred twenty-three thousand, one hundred twenty-three".