11508338125 has 10 divisors (see below), whose sum is σ = 14380820102. Its totient is φ = 9206670000.

The previous prime is 11508338123. The next prime is 11508338129. The reversal of 11508338125 is 52183380511.

It is a happy number.

It can be written as a sum of positive squares in 5 ways, for example, as 4333062276 + 7175275849 = 65826^2 + 84707^2 .

It is not a de Polignac number, because 11508338125 - 2¹ = 11508338123 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 (11508338123) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9206046 + ... + 9207295.

Almost surely, 2^11508338125 is an apocalyptic number.

It is an amenable number.

11508338125 is a deficient number, since it is larger than the sum of its proper divisors (2872481977).

11508338125 is an frugal number, since it uses more digits than its factorization.

11508338125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18413361 (or 18413346 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 37.

The spelling of 11508338125 in words is "eleven billion, five hundred eight million, three hundred thirty-eight thousand, one hundred twenty-five".