13133031313331 has 4 divisors (see below), whose sum is σ = 13133056005312. Its totient is φ = 13133006621352.

The previous prime is 13133031313289. The next prime is 13133031313463. The reversal of 13133031313331 is 13331313033131.

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

It is a cyclic number.

It is not a de Polignac number, because 13133031313331 - 2⁶ = 13133031313267 is a prime.

It is a super-2 number, since 2×13133031313331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13133031313294 and 13133031313303.

It is not an unprimeable number, because it can be changed into a prime (13133031393331) 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, 11530211 + ... + 12617916.

It is an arithmetic number, because the mean of its divisors is an integer number (3283264001328).

Almost surely, 2^{13133031313331} is an apocalyptic number.

13133031313331 is a deficient number, since it is larger than the sum of its proper divisors (24691981).

13133031313331 is an equidigital number, since it uses as much as digits as its factorization.

13133031313331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24691980.

The product of its (nonzero) digits is 6561, while the sum is 29.

Adding to 13133031313331 its reverse (13331313033131), we get a palindrome (26464344346462).

The spelling of 13133031313331 in words is "thirteen trillion, one hundred thirty-three billion, thirty-one million, three hundred thirteen thousand, three hundred thirty-one".