11031120111 has 64 divisors (see below), whose sum is σ = 17457960960. Its totient is φ = 6123600000.

The previous prime is 11031120103. The next prime is 11031120169. The reversal of 11031120111 is 11102113011.

It is not a de Polignac number, because 11031120111 - 2³ = 11031120103 is a prime.

It is a super-2 number, since 2×11031120111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031122111) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2721036 + ... + 2725086.

It is an arithmetic number, because the mean of its divisors is an integer number (272780640).

Almost surely, 2^11031120111 is an apocalyptic number.

11031120111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11031120111 is a deficient number, since it is larger than the sum of its proper divisors (6426840849).

11031120111 is a wasteful number, since it uses less digits than its factorization.

11031120111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4228.

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

Adding to 11031120111 its reverse (11102113011), we get a palindrome (22133233122).

The spelling of 11031120111 in words is "eleven billion, thirty-one million, one hundred twenty thousand, one hundred eleven".