11504043125 has 20 divisors (see below), whose sum is σ = 14681350464. Its totient is φ = 9007398000.

The previous prime is 11504043119. The next prime is 11504043127. The reversal of 11504043125 is 52134040511.

It is not a de Polignac number, because 11504043125 - 2¹⁴ = 11504026741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11504043094 and 11504043103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11504043127) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 166439 + ... + 225188.

Almost surely, 2^11504043125 is an apocalyptic number.

It is an amenable number.

11504043125 is a deficient number, since it is larger than the sum of its proper divisors (3177307339).

11504043125 is an frugal number, since it uses more digits than its factorization.

11504043125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391694 (or 391679 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 11504043125 its reverse (52134040511), we get a palindrome (63638083636).

The spelling of 11504043125 in words is "eleven billion, five hundred four million, forty-three thousand, one hundred twenty-five".