125994845611 has 2 divisors, whose sum is σ = 125994845612. Its totient is φ = 125994845610.

The previous prime is 125994845609. The next prime is 125994845623. The reversal of 125994845611 is 116548499521.

It is a weak prime.

It is an emirp because it is prime and its reverse (116548499521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 125994845611 - 2¹ = 125994845609 is a prime.

It is a super-2 number, since 2×125994845611² (a number of 23 digits) contains 22 as substring.

Together with 125994845609, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (125994849611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62997422805 + 62997422806.

It is an arithmetic number, because the mean of its divisors is an integer number (62997422806).

Almost surely, 2^125994845611 is an apocalyptic number.

125994845611 is a deficient number, since it is larger than the sum of its proper divisors (1).

125994845611 is an equidigital number, since it uses as much as digits as its factorization.

125994845611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3110400, while the sum is 55.

The spelling of 125994845611 in words is "one hundred twenty-five billion, nine hundred ninety-four million, eight hundred forty-five thousand, six hundred eleven".