9313121331 has 12 divisors (see below), whose sum is σ = 13765130808. Its totient is φ = 6064357824.

The previous prime is 9313121303. The next prime is 9313121351. The reversal of 9313121331 is 1331213139.

9313121331 is a `hidden beast` number, since 9 + 313 + 12 + 1 + 331 = 666.

9313121331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9313121331 - 2²⁵ = 9279566899 is a prime.

It is a super-2 number, since 2×9313121331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9313121295 and 9313121304.

It is not an unprimeable number, because it can be changed into a prime (9313121351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12032070 + ... + 12032843.

It is an arithmetic number, because the mean of its divisors is an integer number (1147094234).

Almost surely, 2^9313121331 is an apocalyptic number.

9313121331 is a deficient number, since it is larger than the sum of its proper divisors (4452009477).

9313121331 is a wasteful number, since it uses less digits than its factorization.

9313121331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24064962 (or 24064959 counting only the distinct ones).

The product of its digits is 1458, while the sum is 27.

The square root of 9313121331 is about 96504.5145627913. The cubic root of 9313121331 is about 2103.9322641857.

The spelling of 9313121331 in words is "nine billion, three hundred thirteen million, one hundred twenty-one thousand, three hundred thirty-one".