11511125012 has 24 divisors (see below), whose sum is σ = 20725238016. Its totient is φ = 5591982528.

The previous prime is 11511124993. The next prime is 11511125039. The reversal of 11511125012 is 21052111511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274628 + ... + 313755.

It is an arithmetic number, because the mean of its divisors is an integer number (863551584).

Almost surely, 2^11511125012 is an apocalyptic number.

It is an amenable number.

11511125012 is a deficient number, since it is larger than the sum of its proper divisors (9214113004).

11511125012 is a wasteful number, since it uses less digits than its factorization.

11511125012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 588527 (or 588525 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 20.

Adding to 11511125012 its reverse (21052111511), we get a palindrome (32563236523).

The spelling of 11511125012 in words is "eleven billion, five hundred eleven million, one hundred twenty-five thousand, twelve".