9611331320231 has 12 divisors (see below), whose sum is σ = 9957933709152. Its totient is φ = 9276411320064.

The previous prime is 9611331320197. The next prime is 9611331320267. The reversal of 9611331320231 is 1320231331169.

It is a de Polignac number, because none of the positive numbers 2^k-9611331320231 is a prime.

It is a super-2 number, since 2×9611331320231² (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 = 9611331320191 and 9611331320200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9611331320531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83906 + ... + 4385168.

It is an arithmetic number, because the mean of its divisors is an integer number (829827809096).

Almost surely, 2^{9611331320231} is an apocalyptic number.

9611331320231 is a deficient number, since it is larger than the sum of its proper divisors (346602388921).

9611331320231 is a wasteful number, since it uses less digits than its factorization.

9611331320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4303978 (or 4303949 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 35.

The spelling of 9611331320231 in words is "nine trillion, six hundred eleven billion, three hundred thirty-one million, three hundred twenty thousand, two hundred thirty-one".