111104442121 has 2 divisors, whose sum is σ = 111104442122. Its totient is φ = 111104442120.

The previous prime is 111104442109. The next prime is 111104442133. The reversal of 111104442121 is 121244401111.

It is a balanced prime because it is at equal distance from previous prime (111104442109) and next prime (111104442133).

It can be written as a sum of positive squares in only one way, i.e., 93663542025 + 17440900096 = 306045^2 + 132064^2 .

It is a cyclic number.

It is not a de Polignac number, because 111104442121 - 2¹⁹ = 111103917833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111104442092 and 111104442101.

It is not a weakly prime, because it can be changed into another prime (111104442721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55552221060 + 55552221061.

It is an arithmetic number, because the mean of its divisors is an integer number (55552221061).

Almost surely, 2^111104442121 is an apocalyptic number.

It is an amenable number.

111104442121 is a deficient number, since it is larger than the sum of its proper divisors (1).

111104442121 is an equidigital number, since it uses as much as digits as its factorization.

111104442121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 111104442121 its reverse (121244401111), we get a palindrome (232348843232).

The spelling of 111104442121 in words is "one hundred eleven billion, one hundred four million, four hundred forty-two thousand, one hundred twenty-one".