125504111424 has 112 divisors (see below), whose sum is σ = 336524364288. Its totient is φ = 41274029568.

The previous prime is 125504111401. The next prime is 125504111441. The reversal of 125504111424 is 424111405521.

It is a junction number, because it is equal to n+sod(n) for n = 125504111391 and 125504111400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12536629 + ... + 12546635.

It is an arithmetic number, because the mean of its divisors is an integer number (3004681824).

Almost surely, 2^125504111424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125504111424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168262182144).

125504111424 is an abundant number, since it is smaller than the sum of its proper divisors (211020252864).

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

125504111424 is a wasteful number, since it uses less digits than its factorization.

125504111424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10892 (or 10882 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

Adding to 125504111424 its reverse (424111405521), we get a palindrome (549615516945).

The spelling of 125504111424 in words is "one hundred twenty-five billion, five hundred four million, one hundred eleven thousand, four hundred twenty-four".