13312113123 has 4 divisors (see below), whose sum is σ = 17749484168. Its totient is φ = 8874742080.

The previous prime is 13312113097. The next prime is 13312113137. The reversal of 13312113123 is 32131121331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 13312113123 - 2⁸ = 13312112867 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13312113123.

It is not an unprimeable number, because it can be changed into a prime (13312113193) 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, 2218685518 + ... + 2218685523.

It is an arithmetic number, because the mean of its divisors is an integer number (4437371042).

Almost surely, 2^13312113123 is an apocalyptic number.

13312113123 is a deficient number, since it is larger than the sum of its proper divisors (4437371045).

13312113123 is an equidigital number, since it uses as much as digits as its factorization.

13312113123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4437371044.

The product of its digits is 324, while the sum is 21.

Adding to 13312113123 its reverse (32131121331), we get a palindrome (45443234454).

The spelling of 13312113123 in words is "thirteen billion, three hundred twelve million, one hundred thirteen thousand, one hundred twenty-three".