125512516103 has 8 divisors (see below), whose sum is σ = 136363497648. Its totient is φ = 114832416384.

The previous prime is 125512516049. The next prime is 125512516117. The reversal of 125512516103 is 301615215521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 125512516103 - 2¹² = 125512512007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 125512516103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125512516153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42718925 + ... + 42721862.

It is an arithmetic number, because the mean of its divisors is an integer number (17045437206).

Almost surely, 2^125512516103 is an apocalyptic number.

125512516103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

125512516103 is a deficient number, since it is larger than the sum of its proper divisors (10850981545).

125512516103 is a wasteful number, since it uses less digits than its factorization.

125512516103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85440913.

The product of its (nonzero) digits is 9000, while the sum is 32.

The spelling of 125512516103 in words is "one hundred twenty-five billion, five hundred twelve million, five hundred sixteen thousand, one hundred three".