1020121122123 has 6 divisors (see below), whose sum is σ = 1473508287524. Its totient is φ = 680080748076.

The previous prime is 1020121122089. The next prime is 1020121122133. The reversal of 1020121122123 is 3212211210201.

1020121122123 is a `hidden beast` number, since 10 + 201 + 211 + 221 + 23 = 666.

It is not a de Polignac number, because 1020121122123 - 2⁹ = 1020121121611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1020121122096 and 1020121122105.

It is not an unprimeable number, because it can be changed into a prime (1020121122133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56673395665 + ... + 56673395682.

Almost surely, 2^{1020121122123} is an apocalyptic number.

1020121122123 is a deficient number, since it is larger than the sum of its proper divisors (453387165401).

1020121122123 is a wasteful number, since it uses less digits than its factorization.

1020121122123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113346791353 (or 113346791350 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1020121122123 its reverse (3212211210201), we get a palindrome (4232332332324).

The spelling of 1020121122123 in words is "one trillion, twenty billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred twenty-three".