11331012111121 has 4 divisors (see below), whose sum is σ = 11332256876032. Its totient is φ = 11329767346212.

The previous prime is 11331012111113. The next prime is 11331012111143. The reversal of 11331012111121 is 12111121013311.

11331012111121 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, 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 11331012111121 - 2³ = 11331012111113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11331012111191) 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, 622368801 + ... + 622387006.

It is an arithmetic number, because the mean of its divisors is an integer number (2833064219008).

Almost surely, 2^{11331012111121} is an apocalyptic number.

It is an amenable number.

11331012111121 is a deficient number, since it is larger than the sum of its proper divisors (1244764911).

11331012111121 is an equidigital number, since it uses as much as digits as its factorization.

11331012111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1244764910.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 11331012111121 its reverse (12111121013311), we get a palindrome (23442133124432).

The spelling of 11331012111121 in words is "eleven trillion, three hundred thirty-one billion, twelve million, one hundred eleven thousand, one hundred twenty-one".