20121122020023 has 6 divisors (see below), whose sum is σ = 29063842917824. Its totient is φ = 13414081346676.

The previous prime is 20121122019953. The next prime is 20121122020037. The reversal of 20121122020023 is 32002022112102.

20121122020023 is a `hidden beast` number, since 201 + 21 + 1 + 220 + 200 + 23 = 666.

It is not a de Polignac number, because 20121122020023 - 2¹⁸ = 20121121757879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20121122019978 and 20121122020005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121122020063) 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, 1117840112215 + ... + 1117840112232.

Almost surely, 2^{20121122020023} is an apocalyptic number.

20121122020023 is a deficient number, since it is larger than the sum of its proper divisors (8942720897801).

20121122020023 is a wasteful number, since it uses less digits than its factorization.

20121122020023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235680224453 (or 2235680224450 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20121122020023 its reverse (32002022112102), we get a palindrome (52123144132125).

The spelling of 20121122020023 in words is "twenty trillion, one hundred twenty-one billion, one hundred twenty-two million, twenty thousand, twenty-three".