125111415213 has 28 divisors (see below), whose sum is σ = 197454035040. Its totient is φ = 79017727176.

The previous prime is 125111415211. The next prime is 125111415229. The reversal of 125111415213 is 312514111521.

125111415213 is a `hidden beast` number, since 1 + 2 + 511 + 141 + 5 + 2 + 1 + 3 = 666.

It is not a de Polignac number, because 125111415213 - 2¹ = 125111415211 is a prime.

It is a super-3 number, since 3×125111415213³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125111415211) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 4502481 + ... + 4530182.

Almost surely, 2^125111415213 is an apocalyptic number.

It is an amenable number.

125111415213 is a deficient number, since it is larger than the sum of its proper divisors (72342619827).

125111415213 is an frugal number, since it uses more digits than its factorization.

125111415213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9032700 (or 9032685 counting only the distinct ones).

The product of its digits is 1200, while the sum is 27.

Adding to 125111415213 its reverse (312514111521), we get a palindrome (437625526734).

The spelling of 125111415213 in words is "one hundred twenty-five billion, one hundred eleven million, four hundred fifteen thousand, two hundred thirteen".