1110121202123 has 2 divisors, whose sum is σ = 1110121202124. Its totient is φ = 1110121202122.

The previous prime is 1110121202093. The next prime is 1110121202143. The reversal of 1110121202123 is 3212021210111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1110121202123 - 2³⁶ = 1041401725387 is a prime.

It is not a weakly prime, because it can be changed into another prime (1110121202143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555060601061 + 555060601062.

It is an arithmetic number, because the mean of its divisors is an integer number (555060601062).

Almost surely, 2^{1110121202123} is an apocalyptic number.

1110121202123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110121202123 is an equidigital number, since it uses as much as digits as its factorization.

1110121202123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1110121202123 its reverse (3212021210111), we get a palindrome (4322142412234).

The spelling of 1110121202123 in words is "one trillion, one hundred ten billion, one hundred twenty-one million, two hundred two thousand, one hundred twenty-three".