11111513005 has 8 divisors (see below), whose sum is σ = 13363515000. Its totient is φ = 8869410816.

The previous prime is 11111512969. The next prime is 11111513053. The reversal of 11111513005 is 50031511111.

It can be written as a sum of positive squares in 4 ways, for example, as 10361961 + 11101151044 = 3219^2 + 105362^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11111513005 - 2⁷ = 11111512877 is a prime.

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, 2472480 + ... + 2476969.

It is an arithmetic number, because the mean of its divisors is an integer number (1670439375).

Almost surely, 2^11111513005 is an apocalyptic number.

It is an amenable number.

11111513005 is a deficient number, since it is larger than the sum of its proper divisors (2252001995).

11111513005 is an equidigital number, since it uses as much as digits as its factorization.

11111513005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4949903.

The product of its (nonzero) digits is 75, while the sum is 19.

The spelling of 11111513005 in words is "eleven billion, one hundred eleven million, five hundred thirteen thousand, five".