121110200112123 has 48 divisors (see below), whose sum is σ = 179983916330400. Its totient is φ = 78418612449792.

The previous prime is 121110200112079. The next prime is 121110200112133. The reversal of 121110200112123 is 321211002011121.

It is a happy number.

121110200112123 is a `hidden beast` number, since 121 + 110 + 200 + 112 + 123 = 666.

It is not a de Polignac number, because 121110200112123 - 2¹³ = 121110200103931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121110200112096 and 121110200112105.

It is not an unprimeable number, because it can be changed into a prime (121110200112133) 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, 540189415 + ... + 540413567.

It is an arithmetic number, because the mean of its divisors is an integer number (3749664923550).

Almost surely, 2^{121110200112123} is an apocalyptic number.

121110200112123 is a deficient number, since it is larger than the sum of its proper divisors (58873716218277).

121110200112123 is a wasteful number, since it uses less digits than its factorization.

121110200112123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227068 (or 227065 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 121110200112123 its reverse (321211002011121), we get a palindrome (442321202123244).

The spelling of 121110200112123 in words is "one hundred twenty-one trillion, one hundred ten billion, two hundred million, one hundred twelve thousand, one hundred twenty-three".