11200020993 has 54 divisors (see below), whose sum is σ = 19229680626. Its totient is φ = 6263296704.

The previous prime is 11200020977. The next prime is 11200021033. The reversal of 11200020993 is 39902000211.

It can be written as a sum of positive squares in only one way, i.e., 9937497969 + 1262523024 = 99687^2 + 35532^2 .

It is not a de Polignac number, because 11200020993 - 2⁴ = 11200020977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11200021993) 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 53 ways as a sum of consecutive naturals, for example, 968421 + ... + 979917.

Almost surely, 2^11200020993 is an apocalyptic number.

It is an amenable number.

11200020993 is a deficient number, since it is larger than the sum of its proper divisors (8029659633).

11200020993 is a wasteful number, since it uses less digits than its factorization.

11200020993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11611 (or 11554 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 27.

The spelling of 11200020993 in words is "eleven billion, two hundred million, twenty thousand, nine hundred ninety-three".