12120012011113 has 2 divisors, whose sum is σ = 12120012011114. Its totient is φ = 12120012011112.

The previous prime is 12120012011099. The next prime is 12120012011143. The reversal of 12120012011113 is 31111021002121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7381915113024 + 4738096898089 = 2716968^2 + 2176717^2 .

It is an emirp because it is prime and its reverse (31111021002121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120012011113 is a prime.

It is a super-2 number, since 2×12120012011113² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12120012011143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060006005556 + 6060006005557.

It is an arithmetic number, because the mean of its divisors is an integer number (6060006005557).

Almost surely, 2^{12120012011113} is an apocalyptic number.

It is an amenable number.

12120012011113 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120012011113 is an equidigital number, since it uses as much as digits as its factorization.

12120012011113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 12120012011113 its reverse (31111021002121), we get a palindrome (43231033013234).

The spelling of 12120012011113 in words is "twelve trillion, one hundred twenty billion, twelve million, eleven thousand, one hundred thirteen".