11321320100 has 18 divisors (see below), whose sum is σ = 24567264834. Its totient is φ = 4528528000.

The previous prime is 11321320099. The next prime is 11321320117. The reversal of 11321320100 is 102312311.

It can be written as a sum of positive squares in 3 ways, for example, as 930372004 + 10390948096 = 30502^2 + 101936^2 .

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, 56606501 + ... + 56606700.

Almost surely, 2^11321320100 is an apocalyptic number.

11321320100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11321320100 is an abundant number, since it is smaller than the sum of its proper divisors (13245944734).

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

11321320100 is a wasteful number, since it uses less digits than its factorization.

11321320100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113213215 (or 113213208 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11321320100 its reverse (102312311), we get a palindrome (11423632411).

The spelling of 11321320100 in words is "eleven billion, three hundred twenty-one million, three hundred twenty thousand, one hundred".