125313051215 has 64 divisors (see below), whose sum is σ = 172145267712. Its totient is φ = 86771865600.

The previous prime is 125313051211. The next prime is 125313051217. The reversal of 125313051215 is 512150313521.

It is not a de Polignac number, because 125313051215 - 2² = 125313051211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125313051211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16298102 + ... + 16305788.

It is an arithmetic number, because the mean of its divisors is an integer number (2689769808).

Almost surely, 2^125313051215 is an apocalyptic number.

125313051215 is a deficient number, since it is larger than the sum of its proper divisors (46832216497).

125313051215 is a wasteful number, since it uses less digits than its factorization.

125313051215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7920.

The product of its (nonzero) digits is 4500, while the sum is 29.

Adding to 125313051215 its reverse (512150313521), we get a palindrome (637463364736).

The spelling of 125313051215 in words is "one hundred twenty-five billion, three hundred thirteen million, fifty-one thousand, two hundred fifteen".