12118705507 has 2 divisors, whose sum is σ = 12118705508. Its totient is φ = 12118705506.

The previous prime is 12118705481. The next prime is 12118705531. The reversal of 12118705507 is 70550781121.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (70550781121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12118705507 is a prime.

It is not a weakly prime, because it can be changed into another prime (12118705537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6059352753 + 6059352754.

It is an arithmetic number, because the mean of its divisors is an integer number (6059352754).

Almost surely, 2^12118705507 is an apocalyptic number.

12118705507 is a deficient number, since it is larger than the sum of its proper divisors (1).

12118705507 is an equidigital number, since it uses as much as digits as its factorization.

12118705507 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19600, while the sum is 37.

The spelling of 12118705507 in words is "twelve billion, one hundred eighteen million, seven hundred five thousand, five hundred seven".