111121323121111 has 8 divisors (see below), whose sum is σ = 112274245371600. Its totient is φ = 109969434422400.

The previous prime is 111121323121057. The next prime is 111121323121117.

111121323121111 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111121323121111 is a prime.

It is a super-2 number, since 2×111121323121111² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111121323121117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 258171801 + ... + 258601858.

It is an arithmetic number, because the mean of its divisors is an integer number (14034280671450).

Almost surely, 2^{111121323121111} is an apocalyptic number.

111121323121111 is a deficient number, since it is larger than the sum of its proper divisors (1152922250489).

111121323121111 is a wasteful number, since it uses less digits than its factorization.

111121323121111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516775889.

The product of its digits is 72, while the sum is 22.

The spelling of 111121323121111 in words is "one hundred eleven trillion, one hundred twenty-one billion, three hundred twenty-three million, one hundred twenty-one thousand, one hundred eleven".