12120111007 has 2 divisors, whose sum is σ = 12120111008. Its totient is φ = 12120111006.

The previous prime is 12120110987. The next prime is 12120111037. The reversal of 12120111007 is 70011102121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12120111007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120111037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060055503 + 6060055504.

It is an arithmetic number, because the mean of its divisors is an integer number (6060055504).

Almost surely, 2^12120111007 is an apocalyptic number.

12120111007 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120111007 is an equidigital number, since it uses as much as digits as its factorization.

12120111007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 16.

Adding to 12120111007 its reverse (70011102121), we get a palindrome (82131213128).

The spelling of 12120111007 in words is "twelve billion, one hundred twenty million, one hundred eleven thousand, seven".