11513044045 has 16 divisors (see below), whose sum is σ = 14733593280. Its totient is φ = 8606271744.

The previous prime is 11513044031. The next prime is 11513044139. The reversal of 11513044045 is 54044031511.

It is a cyclic number.

It is not a de Polignac number, because 11513044045 - 2⁷ = 11513043917 is a prime.

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, 475407 + ... + 499036.

It is an arithmetic number, because the mean of its divisors is an integer number (920849580).

Almost surely, 2^11513044045 is an apocalyptic number.

It is an amenable number.

11513044045 is a deficient number, since it is larger than the sum of its proper divisors (3220549235).

11513044045 is a wasteful number, since it uses less digits than its factorization.

11513044045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974604.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 11513044045 its reverse (54044031511), we get a palindrome (65557075556).

The spelling of 11513044045 in words is "eleven billion, five hundred thirteen million, forty-four thousand, forty-five".