11120121331 has 16 divisors (see below), whose sum is σ = 12338067456. Its totient is φ = 9936900000.

The previous prime is 11120121323. The next prime is 11120121343. The reversal of 11120121331 is 13312102111.

It is a happy number.

It is not a de Polignac number, because 11120121331 - 2³ = 11120121323 is a prime.

It is a super-2 number, since 2×11120121331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11120121301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1210606 + ... + 1219756.

It is an arithmetic number, because the mean of its divisors is an integer number (771129216).

Almost surely, 2^11120121331 is an apocalyptic number.

11120121331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11120121331 is a deficient number, since it is larger than the sum of its proper divisors (1217946125).

11120121331 is a wasteful number, since it uses less digits than its factorization.

11120121331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11034.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11120121331 its reverse (13312102111), we get a palindrome (24432223442).

The spelling of 11120121331 in words is "eleven billion, one hundred twenty million, one hundred twenty-one thousand, three hundred thirty-one".