12011220000023 has 2 divisors, whose sum is σ = 12011220000024. Its totient is φ = 12011220000022.

The previous prime is 12011219999981. The next prime is 12011220000079. The reversal of 12011220000023 is 32000002211021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12011220000023 - 2¹⁴ = 12011219983639 is a prime.

It is a super-2 number, since 2×12011220000023² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12011219999962 and 12011220000007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12011220005023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005610000011 + 6005610000012.

It is an arithmetic number, because the mean of its divisors is an integer number (6005610000012).

Almost surely, 2^{12011220000023} is an apocalyptic number.

12011220000023 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011220000023 is an equidigital number, since it uses as much as digits as its factorization.

12011220000023 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 14.

Adding to 12011220000023 its reverse (32000002211021), we get a palindrome (44011222211044).

The spelling of 12011220000023 in words is "twelve trillion, eleven billion, two hundred twenty million, twenty-three", and thus it is an aban number.