11130552197 has 4 divisors (see below), whose sum is σ = 11132472780. Its totient is φ = 11128631616.

The previous prime is 11130552151. The next prime is 11130552233. The reversal of 11130552197 is 79125503111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3674056996 + 7456495201 = 60614^2 + 86351^2 .

It is a cyclic number.

It is not a de Polignac number, because 11130552197 - 2¹² = 11130548101 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 (11130542197) 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, 951572 + ... + 963197.

It is an arithmetic number, because the mean of its divisors is an integer number (2783118195).

Almost surely, 2^11130552197 is an apocalyptic number.

It is an amenable number.

11130552197 is a deficient number, since it is larger than the sum of its proper divisors (1920583).

11130552197 is an equidigital number, since it uses as much as digits as its factorization.

11130552197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920582.

The product of its (nonzero) digits is 9450, while the sum is 35.

The spelling of 11130552197 in words is "eleven billion, one hundred thirty million, five hundred fifty-two thousand, one hundred ninety-seven".