11185497101 has 4 divisors (see below), whose sum is σ = 11187405600. Its totient is φ = 11183588604.

The previous prime is 11185497079. The next prime is 11185497119. The reversal of 11185497101 is 10179458111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11185497101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11185497131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 945431 + ... + 957188.

It is an arithmetic number, because the mean of its divisors is an integer number (2796851400).

Almost surely, 2^11185497101 is an apocalyptic number.

It is an amenable number.

11185497101 is a deficient number, since it is larger than the sum of its proper divisors (1908499).

11185497101 is an equidigital number, since it uses as much as digits as its factorization.

11185497101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908498.

The product of its (nonzero) digits is 10080, while the sum is 38.

The spelling of 11185497101 in words is "eleven billion, one hundred eighty-five million, four hundred ninety-seven thousand, one hundred one".