111101313133121 has 4 divisors (see below), whose sum is σ = 111124806754500. Its totient is φ = 111077819511744.

The previous prime is 111101313133081. The next prime is 111101313133127. The reversal of 111101313133121 is 121331313101111.

It is a happy number.

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 884154687025 + 110217158446096 = 940295^2 + 10498436^2 .

It is a cyclic number.

It is not a de Polignac number, because 111101313133121 - 2²² = 111101308938817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111101313133127) 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, 11746803596 + ... + 11746813053.

It is an arithmetic number, because the mean of its divisors is an integer number (27781201688625).

Almost surely, 2^{111101313133121} is an apocalyptic number.

It is an amenable number.

111101313133121 is a deficient number, since it is larger than the sum of its proper divisors (23493621379).

111101313133121 is an equidigital number, since it uses as much as digits as its factorization.

111101313133121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23493621378.

The product of its (nonzero) digits is 162, while the sum is 23.

Adding to 111101313133121 its reverse (121331313101111), we get a palindrome (232432626234232).

The spelling of 111101313133121 in words is "one hundred eleven trillion, one hundred one billion, three hundred thirteen million, one hundred thirty-three thousand, one hundred twenty-one".