11031110121 has 4 divisors (see below), whose sum is σ = 14708146832. Its totient is φ = 7354073412.

The previous prime is 11031110119. The next prime is 11031110141. The reversal of 11031110121 is 12101113011.

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 not a de Polignac number, because 11031110121 - 2¹ = 11031110119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11031110097 and 11031110106.

It is not an unprimeable number, because it can be changed into a prime (11031110141) 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, 1838518351 + ... + 1838518356.

It is an arithmetic number, because the mean of its divisors is an integer number (3677036708).

Almost surely, 2^11031110121 is an apocalyptic number.

It is an amenable number.

11031110121 is a deficient number, since it is larger than the sum of its proper divisors (3677036711).

11031110121 is an equidigital number, since it uses as much as digits as its factorization.

11031110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3677036710.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 11031110121 its reverse (12101113011), we get a palindrome (23132223132).

The spelling of 11031110121 in words is "eleven billion, thirty-one million, one hundred ten thousand, one hundred twenty-one".