11215103700 has 72 divisors (see below), whose sum is σ = 32583886720. Its totient is φ = 2978265600.

The previous prime is 11215103693. The next prime is 11215103701. The reversal of 11215103700 is 730151211.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11215103701) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5260 + ... + 149859.

Almost surely, 2^11215103700 is an apocalyptic number.

11215103700 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 11215103700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16291943360).

11215103700 is an abundant number, since it is smaller than the sum of its proper divisors (21368783020).

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

11215103700 is a wasteful number, since it uses less digits than its factorization.

11215103700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155377 (or 155370 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 21.

Adding to 11215103700 its reverse (730151211), we get a palindrome (11945254911).

The spelling of 11215103700 in words is "eleven billion, two hundred fifteen million, one hundred three thousand, seven hundred".