13031110133 has 4 divisors (see below), whose sum is σ = 13060133100. Its totient is φ = 13002087168.

The previous prime is 13031110129. The next prime is 13031110187. The reversal of 13031110133 is 33101113031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3265322449 + 9765787684 = 57143^2 + 98822^2 .

It is a cyclic number.

It is not a de Polignac number, because 13031110133 - 2² = 13031110129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031110333) 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, 14510810 + ... + 14511707.

It is an arithmetic number, because the mean of its divisors is an integer number (3265033275).

Almost surely, 2^13031110133 is an apocalyptic number.

It is an amenable number.

13031110133 is a deficient number, since it is larger than the sum of its proper divisors (29022967).

13031110133 is an equidigital number, since it uses as much as digits as its factorization.

13031110133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29022966.

The product of its (nonzero) digits is 81, while the sum is 17.

Adding to 13031110133 its reverse (33101113031), we get a palindrome (46132223164).

The spelling of 13031110133 in words is "thirteen billion, thirty-one million, one hundred ten thousand, one hundred thirty-three".