11231111011133 has 8 divisors (see below), whose sum is σ = 12293322015576. Its totient is φ = 10197225633600.

The previous prime is 11231111011111. The next prime is 11231111011151. The reversal of 11231111011133 is 33111011113211.

It can be written as a sum of positive squares in 4 ways, for example, as 2178702937849 + 9052408073284 = 1476043^2 + 3008722^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11231111011133 - 2¹⁰ = 11231111010109 is a prime.

It is a super-2 number, since 2×11231111011133² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231111011163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7081405898 + ... + 7081407483.

It is an arithmetic number, because the mean of its divisors is an integer number (1536665251947).

Almost surely, 2^{11231111011133} is an apocalyptic number.

11231111011133 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11231111011133 is a deficient number, since it is larger than the sum of its proper divisors (1062211004443).

11231111011133 is a wasteful number, since it uses less digits than its factorization.

11231111011133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14162813455.

The product of its (nonzero) digits is 54, while the sum is 20.

Adding to 11231111011133 its reverse (33111011113211), we get a palindrome (44342122124344).

The spelling of 11231111011133 in words is "eleven trillion, two hundred thirty-one billion, one hundred eleven million, eleven thousand, one hundred thirty-three".