126111121207 has 2 divisors, whose sum is σ = 126111121208. Its totient is φ = 126111121206.

The previous prime is 126111121181. The next prime is 126111121211. The reversal of 126111121207 is 702121111621.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (702121111621) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126111121207 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126111125207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63055560603 + 63055560604.

It is an arithmetic number, because the mean of its divisors is an integer number (63055560604).

Almost surely, 2^126111121207 is an apocalyptic number.

126111121207 is a deficient number, since it is larger than the sum of its proper divisors (1).

126111121207 is an equidigital number, since it uses as much as digits as its factorization.

126111121207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 25.

Adding to 126111121207 its reverse (702121111621), we get a palindrome (828232232828).

The spelling of 126111121207 in words is "one hundred twenty-six billion, one hundred eleven million, one hundred twenty-one thousand, two hundred seven".