121324442111 has 16 divisors (see below), whose sum is σ = 125824327680. Its totient is φ = 116861693760.

The previous prime is 121324442093. The next prime is 121324442117. The reversal of 121324442111 is 111244423121.

It is a cyclic number.

It is not a de Polignac number, because 121324442111 - 2¹⁰ = 121324441087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121324442117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29211611 + ... + 29215763.

It is an arithmetic number, because the mean of its divisors is an integer number (7864020480).

Almost surely, 2^121324442111 is an apocalyptic number.

121324442111 is a deficient number, since it is larger than the sum of its proper divisors (4499885569).

121324442111 is a wasteful number, since it uses less digits than its factorization.

121324442111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8366.

The product of its digits is 1536, while the sum is 26.

Adding to 121324442111 its reverse (111244423121), we get a palindrome (232568865232).

The spelling of 121324442111 in words is "one hundred twenty-one billion, three hundred twenty-four million, four hundred forty-two thousand, one hundred eleven".