11203939944 has 24 divisors (see below), whose sum is σ = 30344004210. Its totient is φ = 3734646624.

The previous prime is 11203939939. The next prime is 11203939973. The reversal of 11203939944 is 44993930211.

11203939944 is a `hidden beast` number, since 11 + 203 + 9 + 399 + 44 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10743322500 + 460617444 = 103650^2 + 21462^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 11203939944.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77805067 + ... + 77805210.

Almost surely, 2^11203939944 is an apocalyptic number.

It is an amenable number.

11203939944 is an abundant number, since it is smaller than the sum of its proper divisors (19140064266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11203939944 is a wasteful number, since it uses less digits than its factorization.

11203939944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155610289 (or 155610282 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The spelling of 11203939944 in words is "eleven billion, two hundred three million, nine hundred thirty-nine thousand, nine hundred forty-four".