1110121423121 has 2 divisors, whose sum is σ = 1110121423122. Its totient is φ = 1110121423120.

The previous prime is 1110121423087. The next prime is 1110121423141. The reversal of 1110121423121 is 1213241210111.

It is a happy number.

It is an a-pointer prime, because the next prime (1110121423141) can be obtained adding 1110121423121 to its sum of digits (20).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1060819661521 + 49301761600 = 1029961^2 + 222040^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110121423121 - 2¹⁰ = 1110121422097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1110121423093 and 1110121423102.

It is not a weakly prime, because it can be changed into another prime (1110121423141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555060711560 + 555060711561.

It is an arithmetic number, because the mean of its divisors is an integer number (555060711561).

Almost surely, 2^{1110121423121} is an apocalyptic number.

It is an amenable number.

1110121423121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110121423121 is an equidigital number, since it uses as much as digits as its factorization.

1110121423121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 1110121423121 its reverse (1213241210111), we get a palindrome (2323362633232).

The spelling of 1110121423121 in words is "one trillion, one hundred ten billion, one hundred twenty-one million, four hundred twenty-three thousand, one hundred twenty-one".