110213020123121 has 4 divisors (see below), whose sum is σ = 111304238144244. Its totient is φ = 109121802102000.

The previous prime is 110213020123111. The next prime is 110213020123207. The reversal of 110213020123121 is 121321020312011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102570206013025 + 7642814110096 = 10127695^2 + 2764564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110213020123121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110213020123093 and 110213020123102.

It is not an unprimeable number, because it can be changed into a prime (110213020123111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 545609010410 + ... + 545609010611.

It is an arithmetic number, because the mean of its divisors is an integer number (27826059536061).

Almost surely, 2^{110213020123121} is an apocalyptic number.

It is an amenable number.

110213020123121 is a deficient number, since it is larger than the sum of its proper divisors (1091218021123).

110213020123121 is a wasteful number, since it uses less digits than its factorization.

110213020123121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091218021122.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 110213020123121 its reverse (121321020312011), we get a palindrome (231534040435132).

The spelling of 110213020123121 in words is "one hundred ten trillion, two hundred thirteen billion, twenty million, one hundred twenty-three thousand, one hundred twenty-one".