125511412071 has 16 divisors (see below), whose sum is σ = 170200540800. Its totient is φ = 82248538848.

The previous prime is 125511412031. The next prime is 125511412087. The reversal of 125511412071 is 170214115521.

It is not a de Polignac number, because 125511412071 - 2⁶ = 125511412007 is a prime.

It is a super-2 number, since 2×125511412071² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125511412031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2436045 + ... + 2487033.

It is an arithmetic number, because the mean of its divisors is an integer number (10637533800).

Almost surely, 2^125511412071 is an apocalyptic number.

125511412071 is a deficient number, since it is larger than the sum of its proper divisors (44689128729).

125511412071 is a wasteful number, since it uses less digits than its factorization.

125511412071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64958.

The product of its (nonzero) digits is 2800, while the sum is 30.

Adding to 125511412071 its reverse (170214115521), we get a palindrome (295725527592).

The spelling of 125511412071 in words is "one hundred twenty-five billion, five hundred eleven million, four hundred twelve thousand, seventy-one".