12120232511 has 2 divisors, whose sum is σ = 12120232512. Its totient is φ = 12120232510.

The previous prime is 12120232499. The next prime is 12120232517. The reversal of 12120232511 is 11523202121.

12120232511 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12120232511 - 2¹⁴ = 12120216127 is a prime.

It is a super-2 number, since 2×12120232511² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120232517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060116255 + 6060116256.

It is an arithmetic number, because the mean of its divisors is an integer number (6060116256).

Almost surely, 2^12120232511 is an apocalyptic number.

12120232511 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120232511 is an equidigital number, since it uses as much as digits as its factorization.

12120232511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 12120232511 its reverse (11523202121), we get a palindrome (23643434632).

The spelling of 12120232511 in words is "twelve billion, one hundred twenty million, two hundred thirty-two thousand, five hundred eleven".