11515130005 has 32 divisors (see below), whose sum is σ = 14224896000. Its totient is φ = 8945459712.

The previous prime is 11515129999. The next prime is 11515130027. The reversal of 11515130005 is 50003151511.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11515130005 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10976721 + ... + 10977769.

It is an arithmetic number, because the mean of its divisors is an integer number (444528000).

Almost surely, 2^11515130005 is an apocalyptic number.

It is an amenable number.

11515130005 is a deficient number, since it is larger than the sum of its proper divisors (2709765995).

11515130005 is a wasteful number, since it uses less digits than its factorization.

11515130005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1533.

The product of its (nonzero) digits is 375, while the sum is 22.

Adding to 11515130005 its reverse (50003151511), we get a palindrome (61518281516).

The spelling of 11515130005 in words is "eleven billion, five hundred fifteen million, one hundred thirty thousand, five".