71520125102 has 16 divisors (see below), whose sum is σ = 107446943232. Its totient is φ = 35704518360.

The previous prime is 71520125101. The next prime is 71520125123. The reversal of 71520125102 is 20152102517.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71520125101) 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 7 ways as a sum of consecutive naturals, for example, 4094327 + ... + 4111757.

It is an arithmetic number, because the mean of its divisors is an integer number (6715433952).

Almost surely, 2^71520125102 is an apocalyptic number.

71520125102 is a deficient number, since it is larger than the sum of its proper divisors (35926818130).

71520125102 is a wasteful number, since it uses less digits than its factorization.

71520125102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20503.

The product of its (nonzero) digits is 1400, while the sum is 26.

Adding to 71520125102 its reverse (20152102517), we get a palindrome (91672227619).

The spelling of 71520125102 in words is "seventy-one billion, five hundred twenty million, one hundred twenty-five thousand, one hundred two".