11001321123113 has 4 divisors (see below), whose sum is σ = 11380677023940. Its totient is φ = 10621965222288.

The previous prime is 11001321123109. The next prime is 11001321123119. The reversal of 11001321123113 is 31132112310011.

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 9157474881424 + 1843846241689 = 3026132^2 + 1357883^2 .

It is a cyclic number.

It is not a de Polignac number, because 11001321123113 - 2² = 11001321123109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11001321123119) 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, 189677950370 + ... + 189677950427.

It is an arithmetic number, because the mean of its divisors is an integer number (2845169255985).

Almost surely, 2^{11001321123113} is an apocalyptic number.

It is an amenable number.

11001321123113 is a deficient number, since it is larger than the sum of its proper divisors (379355900827).

11001321123113 is an equidigital number, since it uses as much as digits as its factorization.

11001321123113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379355900826.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 11001321123113 its reverse (31132112310011), we get a palindrome (42133433433124).

The spelling of 11001321123113 in words is "eleven trillion, one billion, three hundred twenty-one million, one hundred twenty-three thousand, one hundred thirteen".