11505031033012 has 48 divisors (see below), whose sum is σ = 22645550104128. Its totient is φ = 5068421406720.

The previous prime is 11505031032961. The next prime is 11505031033021. The reversal of 11505031033012 is 21033013050511.

11505031033012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 13330578 + ... + 14167369.

It is an arithmetic number, because the mean of its divisors is an integer number (471782293836).

Almost surely, 2^{11505031033012} is an apocalyptic number.

It is an amenable number.

11505031033012 is a deficient number, since it is larger than the sum of its proper divisors (11140519071116).

11505031033012 is a wasteful number, since it uses less digits than its factorization.

11505031033012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27498256 (or 27498254 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 25.

Adding to 11505031033012 its reverse (21033013050511), we get a palindrome (32538044083523).

The spelling of 11505031033012 in words is "eleven trillion, five hundred five billion, thirty-one million, thirty-three thousand, twelve".