11215544043000 has 128 divisors (see below), whose sum is σ = 38173633655040. Its totient is φ = 2718919760000.

The previous prime is 11215544042999. The next prime is 11215544043007. The reversal of 11215544043000 is 34044551211.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11215544043007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169899486 + ... + 169965485.

It is an arithmetic number, because the mean of its divisors is an integer number (298231512930).

Almost surely, 2^{11215544043000} is an apocalyptic number.

11215544043000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11215544043000 is an abundant number, since it is smaller than the sum of its proper divisors (26958089612040).

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

11215544043000 is a wasteful number, since it uses less digits than its factorization.

11215544043000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339865006 (or 339864992 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 11215544043000 its reverse (34044551211), we get a palindrome (11249588594211).

The spelling of 11215544043000 in words is "eleven trillion, two hundred fifteen billion, five hundred forty-four million, forty-three thousand".