11331323220113 has 4 divisors (see below), whose sum is σ = 12202963467828. Its totient is φ = 10459682972400.

The previous prime is 11331323220101. The next prime is 11331323220131. The reversal of 11331323220113 is 31102232313311.

11331323220113 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7744265253904 + 3587057966209 = 2782852^2 + 1893953^2 .

It is a cyclic number.

It is not a de Polignac number, because 11331323220113 - 2⁸ = 11331323219857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11331323220143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 435820123838 + ... + 435820123863.

It is an arithmetic number, because the mean of its divisors is an integer number (3050740866957).

Almost surely, 2^{11331323220113} is an apocalyptic number.

11331323220113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

11331323220113 is a deficient number, since it is larger than the sum of its proper divisors (871640247715).

11331323220113 is an equidigital number, since it uses as much as digits as its factorization.

11331323220113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871640247714.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 11331323220113 its reverse (31102232313311), we get a palindrome (42433555533424).

The spelling of 11331323220113 in words is "eleven trillion, three hundred thirty-one billion, three hundred twenty-three million, two hundred twenty thousand, one hundred thirteen".