111011130012121 has 4 divisors (see below), whose sum is σ = 113718718549044. Its totient is φ = 108303541475200.

The previous prime is 111011130012113. The next prime is 111011130012127. The reversal of 111011130012121 is 121210031110111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12833847694096 + 98177282318025 = 3582436^2 + 9908445^2 .

It is a cyclic number.

It is not a de Polignac number, because 111011130012121 - 2³ = 111011130012113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111011130012095 and 111011130012104.

It is not an unprimeable number, because it can be changed into a prime (111011130012127) 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, 1353794268400 + ... + 1353794268481.

It is an arithmetic number, because the mean of its divisors is an integer number (28429679637261).

Almost surely, 2^{111011130012121} is an apocalyptic number.

It is an amenable number.

111011130012121 is a deficient number, since it is larger than the sum of its proper divisors (2707588536923).

111011130012121 is an equidigital number, since it uses as much as digits as its factorization.

111011130012121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2707588536922.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 111011130012121 its reverse (121210031110111), we get a palindrome (232221161122232).

The spelling of 111011130012121 in words is "one hundred eleven trillion, eleven billion, one hundred thirty million, twelve thousand, one hundred twenty-one".