125117117072 has 40 divisors (see below), whose sum is σ = 256724640000. Its totient is φ = 58867046912.

The previous prime is 125117117051. The next prime is 125117117093. The reversal of 125117117072 is 270711711521.

It is an interprime number because it is at equal distance from previous prime (125117117051) and next prime (125117117093).

It is an unprimeable number.

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, 1425929 + ... + 1511127.

It is an arithmetic number, because the mean of its divisors is an integer number (6418116000).

Almost surely, 2^125117117072 is an apocalyptic number.

It is an amenable number.

125117117072 is an abundant number, since it is smaller than the sum of its proper divisors (131607522928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125117117072 is a wasteful number, since it uses less digits than its factorization.

125117117072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90623 (or 90617 counting only the distinct ones).

The product of its (nonzero) digits is 6860, while the sum is 35.

Adding to 125117117072 its reverse (270711711521), we get a palindrome (395828828593).

The spelling of 125117117072 in words is "one hundred twenty-five billion, one hundred seventeen million, one hundred seventeen thousand, seventy-two".