125303121215 has 8 divisors (see below), whose sum is σ = 151286223408. Its totient is φ = 99627511680.

The previous prime is 125303121187. The next prime is 125303121217. The reversal of 125303121215 is 512121303521.

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

It is not a de Polignac number, because 125303121215 - 2⁸ = 125303120959 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125303121217) 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, 76872266 + ... + 76873895.

It is an arithmetic number, because the mean of its divisors is an integer number (18910777926).

Almost surely, 2^125303121215 is an apocalyptic number.

125303121215 is a deficient number, since it is larger than the sum of its proper divisors (25983102193).

125303121215 is a wasteful number, since it uses less digits than its factorization.

125303121215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153746329.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 125303121215 its reverse (512121303521), we get a palindrome (637424424736).

The spelling of 125303121215 in words is "one hundred twenty-five billion, three hundred three million, one hundred twenty-one thousand, two hundred fifteen".