11197299643 has 4 divisors (see below), whose sum is σ = 11198005000. Its totient is φ = 11196594288.

The previous prime is 11197299587. The next prime is 11197299661. The reversal of 11197299643 is 34699279111.

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

It is a cyclic number.

It is not a de Polignac number, because 11197299643 - 2⁹ = 11197299131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11197299683) 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, 328305 + ... + 360802.

It is an arithmetic number, because the mean of its divisors is an integer number (2799501250).

Almost surely, 2^11197299643 is an apocalyptic number.

11197299643 is a deficient number, since it is larger than the sum of its proper divisors (705357).

11197299643 is an equidigital number, since it uses as much as digits as its factorization.

11197299643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705356.

The product of its digits is 734832, while the sum is 52.

The spelling of 11197299643 in words is "eleven billion, one hundred ninety-seven million, two hundred ninety-nine thousand, six hundred forty-three".