13313330031121 has 4 divisors (see below), whose sum is σ = 13398128311732. Its totient is φ = 13228531750512.

The previous prime is 13313330031041. The next prime is 13313330031167. The reversal of 13313330031121 is 12113003331331.

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 5618037657600 + 7695292373521 = 2370240^2 + 2774039^2 .

It is not a de Polignac number, because 13313330031121 - 2⁷ = 13313330030993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13313330038121) 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, 42399140070 + ... + 42399140383.

It is an arithmetic number, because the mean of its divisors is an integer number (3349532077933).

Almost surely, 2^{13313330031121} is an apocalyptic number.

It is an amenable number.

13313330031121 is a deficient number, since it is larger than the sum of its proper divisors (84798280611).

13313330031121 is an equidigital number, since it uses as much as digits as its factorization.

13313330031121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84798280610.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 13313330031121 its reverse (12113003331331), we get a palindrome (25426333362452).

The spelling of 13313330031121 in words is "thirteen trillion, three hundred thirteen billion, three hundred thirty million, thirty-one thousand, one hundred twenty-one".