12120201311 has 2 divisors, whose sum is σ = 12120201312. Its totient is φ = 12120201310.

The previous prime is 12120201257. The next prime is 12120201329. The reversal of 12120201311 is 11310202121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120201311 is a prime.

It is a super-2 number, since 2×12120201311² (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 (12120201211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060100655 + 6060100656.

It is an arithmetic number, because the mean of its divisors is an integer number (6060100656).

Almost surely, 2^12120201311 is an apocalyptic number.

12120201311 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120201311 is an equidigital number, since it uses as much as digits as its factorization.

12120201311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12120201311 its reverse (11310202121), we get a palindrome (23430403432).

The spelling of 12120201311 in words is "twelve billion, one hundred twenty million, two hundred one thousand, three hundred eleven".