13320242331 has 32 divisors (see below), whose sum is σ = 19754772480. Its totient is φ = 7914816000.

The previous prime is 13320242303. The next prime is 13320242357. The reversal of 13320242331 is 13324202331.

It is not a de Polignac number, because 13320242331 - 2²¹ = 13318145179 is a prime.

It is a super-2 number, since 2×13320242331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13320242381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4754131 + ... + 4756931.

It is an arithmetic number, because the mean of its divisors is an integer number (617336640).

Almost surely, 2^13320242331 is an apocalyptic number.

13320242331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13320242331 is a deficient number, since it is larger than the sum of its proper divisors (6434530149).

13320242331 is a wasteful number, since it uses less digits than its factorization.

13320242331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5587.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 13320242331 its reverse (13324202331), we get a palindrome (26644444662).

The spelling of 13320242331 in words is "thirteen billion, three hundred twenty million, two hundred forty-two thousand, three hundred thirty-one".