11023031121 has 16 divisors (see below), whose sum is σ = 14735576064. Its totient is φ = 7329613824.

The previous prime is 11023031113. The next prime is 11023031141. The reversal of 11023031121 is 12113032011.

It is a happy number.

It is not a de Polignac number, because 11023031121 - 2³ = 11023031113 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11023031121.

It is not an unprimeable number, because it can be changed into a prime (11023031111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2205201 + ... + 2210193.

It is an arithmetic number, because the mean of its divisors is an integer number (920973504).

Almost surely, 2^11023031121 is an apocalyptic number.

It is an amenable number.

11023031121 is a deficient number, since it is larger than the sum of its proper divisors (3712544943).

11023031121 is a wasteful number, since it uses less digits than its factorization.

11023031121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6760.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11023031121 its reverse (12113032011), we get a palindrome (23136063132).

The spelling of 11023031121 in words is "eleven billion, twenty-three million, thirty-one thousand, one hundred twenty-one".