11322321500 has 96 divisors (see below), whose sum is σ = 28342379520. Its totient is φ = 3870696000.

The previous prime is 11322321473. The next prime is 11322321533. The reversal of 11322321500 is 512322311.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1251995 + ... + 1261005.

It is an arithmetic number, because the mean of its divisors is an integer number (295233120).

Almost surely, 2^11322321500 is an apocalyptic number.

11322321500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11322321500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14171189760).

11322321500 is an abundant number, since it is smaller than the sum of its proper divisors (17020058020).

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

11322321500 is a wasteful number, since it uses less digits than its factorization.

11322321500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9396 (or 9384 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 11322321500 its reverse (512322311), we get a palindrome (11834643811).

The spelling of 11322321500 in words is "eleven billion, three hundred twenty-two million, three hundred twenty-one thousand, five hundred".