121111244122311 has 48 divisors (see below), whose sum is σ = 180567559579680. Its totient is φ = 78173184752640.

The previous prime is 121111244122307. The next prime is 121111244122339. The reversal of 121111244122311 is 113221442111121.

121111244122311 is a `hidden beast` number, since 1 + 2 + 1 + 1 + 1 + 12 + 4 + 412 + 231 + 1 = 666.

It is not a de Polignac number, because 121111244122311 - 2² = 121111244122307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121111244122361) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 126571171 + ... + 127524443.

It is an arithmetic number, because the mean of its divisors is an integer number (3761824157910).

Almost surely, 2^{121111244122311} is an apocalyptic number.

121111244122311 is a deficient number, since it is larger than the sum of its proper divisors (59456315457369).

121111244122311 is a wasteful number, since it uses less digits than its factorization.

121111244122311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 955936 (or 955933 counting only the distinct ones).

The product of its digits is 768, while the sum is 27.

Adding to 121111244122311 its reverse (113221442111121), we get a palindrome (234332686233432).

The spelling of 121111244122311 in words is "one hundred twenty-one trillion, one hundred eleven billion, two hundred forty-four million, one hundred twenty-two thousand, three hundred eleven".