11331112011001 has 4 divisors (see below), whose sum is σ = 11331929624400. Its totient is φ = 11330294397604.

The previous prime is 11331112010987. The next prime is 11331112011029. The reversal of 11331112011001 is 10011021113311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11331112011001 - 2³⁹ = 10781356197113 is a prime.

It is a super-2 number, since 2×11331112011001² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11331112011041) 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, 408785911 + ... + 408813628.

It is an arithmetic number, because the mean of its divisors is an integer number (2832982406100).

Almost surely, 2^{11331112011001} is an apocalyptic number.

It is an amenable number.

11331112011001 is a deficient number, since it is larger than the sum of its proper divisors (817613399).

11331112011001 is an equidigital number, since it uses as much as digits as its factorization.

11331112011001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 817613398.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 11331112011001 its reverse (10011021113311), we get a palindrome (21342133124312).

The spelling of 11331112011001 in words is "eleven trillion, three hundred thirty-one billion, one hundred twelve million, eleven thousand, one".