13311212123 has 8 divisors (see below), whose sum is σ = 14596564656. Its totient is φ = 12038400000.

The previous prime is 13311212099. The next prime is 13311212149. The reversal of 13311212123 is 32121211331.

It is a happy number.

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

It is not a de Polignac number, because 13311212123 - 2⁶ = 13311212059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13311212095 and 13311212104.

It is not an unprimeable number, because it can be changed into a prime (13311212153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3132878 + ... + 3137123.

It is an arithmetic number, because the mean of its divisors is an integer number (1824570582).

Almost surely, 2^13311212123 is an apocalyptic number.

13311212123 is a deficient number, since it is larger than the sum of its proper divisors (1285352533).

13311212123 is a wasteful number, since it uses less digits than its factorization.

13311212123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6270205.

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

Adding to 13311212123 its reverse (32121211331), we get a palindrome (45432423454).

The spelling of 13311212123 in words is "thirteen billion, three hundred eleven million, two hundred twelve thousand, one hundred twenty-three".