121110311101111 has 8 divisors (see below), whose sum is σ = 121440866030960. Its totient is φ = 120780197796672.

The previous prime is 121110311101099. The next prime is 121110311101147. The reversal of 121110311101111 is 111101113011121.

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

It is a cyclic number.

It is not a de Polignac number, because 121110311101111 - 2⁹ = 121110311100599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121110311101811) 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, 109857126 + ... + 110954083.

It is an arithmetic number, because the mean of its divisors is an integer number (15180108253870).

Almost surely, 2^{121110311101111} is an apocalyptic number.

121110311101111 is a deficient number, since it is larger than the sum of its proper divisors (330554929849).

121110311101111 is an equidigital number, since it uses as much as digits as its factorization.

121110311101111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220812705.

The product of its (nonzero) digits is 6, while the sum is 16.

Adding to 121110311101111 its reverse (111101113011121), we get a palindrome (232211424112232).

The spelling of 121110311101111 in words is "one hundred twenty-one trillion, one hundred ten billion, three hundred eleven million, one hundred one thousand, one hundred eleven".