11323098981 has 48 divisors (see below), whose sum is σ = 17279224560. Its totient is φ = 7134167040.

The previous prime is 11323098979. The next prime is 11323098989. The reversal of 11323098981 is 18989032311.

11323098981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 2058073956 + 9265025025 = 45366^2 + 96255^2 .

It is not a de Polignac number, because 11323098981 - 2¹ = 11323098979 is a prime.

It is a super-2 number, since 2×11323098981² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11323098989) 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 47 ways as a sum of consecutive naturals, for example, 8866315 + ... + 8867591.

It is an arithmetic number, because the mean of its divisors is an integer number (359983845).

Almost surely, 2^11323098981 is an apocalyptic number.

It is an amenable number.

11323098981 is a deficient number, since it is larger than the sum of its proper divisors (5956125579).

11323098981 is a wasteful number, since it uses less digits than its factorization.

11323098981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2006 (or 2003 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 11323098981 in words is "eleven billion, three hundred twenty-three million, ninety-eight thousand, nine hundred eighty-one".