11215324100 has 18 divisors (see below), whose sum is σ = 24337253514. Its totient is φ = 4486129600.

The previous prime is 11215324097. The next prime is 11215324103. The reversal of 11215324100 is 142351211.

It is an interprime number because it is at equal distance from previous prime (11215324097) and next prime (11215324103).

It can be written as a sum of positive squares in 3 ways, for example, as 246113344 + 10969210756 = 15688^2 + 104734^2 .

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

It is not an unprimeable number, because it can be changed into a prime (11215324103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56076521 + ... + 56076720.

Almost surely, 2^11215324100 is an apocalyptic number.

11215324100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11215324100 is an abundant number, since it is smaller than the sum of its proper divisors (13121929414).

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

11215324100 is a wasteful number, since it uses less digits than its factorization.

11215324100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112153255 (or 112153248 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 11215324100 its reverse (142351211), we get a palindrome (11357675311).

The spelling of 11215324100 in words is "eleven billion, two hundred fifteen million, three hundred twenty-four thousand, one hundred".