13131322123 has 8 divisors (see below), whose sum is σ = 13824447120. Its totient is φ = 12438397440.

The previous prime is 13131322117. The next prime is 13131322133. The reversal of 13131322123 is 32122313131.

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 13131322123 - 2⁵ = 13131322091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13131322094 and 13131322103.

It is not an unprimeable number, because it can be changed into a prime (13131322103) 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, 95343 + ... + 188023.

It is an arithmetic number, because the mean of its divisors is an integer number (1728055890).

Almost surely, 2^13131322123 is an apocalyptic number.

13131322123 is a deficient number, since it is larger than the sum of its proper divisors (693124997).

13131322123 is an equidigital number, since it uses as much as digits as its factorization.

13131322123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100157.

The product of its digits is 648, while the sum is 22.

Adding to 13131322123 its reverse (32122313131), we get a palindrome (45253635254).

The spelling of 13131322123 in words is "thirteen billion, one hundred thirty-one million, three hundred twenty-two thousand, one hundred twenty-three".