11201940497 has 4 divisors (see below), whose sum is σ = 12220298736. Its totient is φ = 10183582260.

The previous prime is 11201940457. The next prime is 11201940511. The reversal of 11201940497 is 79404910211.

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 not a de Polignac number, because 11201940497 - 2¹⁰ = 11201939473 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11201940497.

It is not an unprimeable number, because it can be changed into a prime (11201940457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 509179103 + ... + 509179124.

It is an arithmetic number, because the mean of its divisors is an integer number (3055074684).

Almost surely, 2^11201940497 is an apocalyptic number.

It is an amenable number.

11201940497 is a deficient number, since it is larger than the sum of its proper divisors (1018358239).

11201940497 is a wasteful number, since it uses less digits than its factorization.

11201940497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018358238.

The product of its (nonzero) digits is 18144, while the sum is 38.

The spelling of 11201940497 in words is "eleven billion, two hundred one million, nine hundred forty thousand, four hundred ninety-seven".