11011203031100 has 72 divisors (see below), whose sum is σ = 24292474484208. Its totient is φ = 4331125324800.

The previous prime is 11011203031097. The next prime is 11011203031109. The reversal of 11011203031100 is 113030211011.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11011203031109) 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, 22899347 + ... + 23375253.

Almost surely, 2^{11011203031100} is an apocalyptic number.

11011203031100 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 11011203031100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12146237242104).

11011203031100 is an abundant number, since it is smaller than the sum of its proper divisors (13281271453108).

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

11011203031100 is a wasteful number, since it uses less digits than its factorization.

11011203031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479775 (or 479768 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 11011203031100 its reverse (113030211011), we get a palindrome (11124233242111).

The spelling of 11011203031100 in words is "eleven trillion, eleven billion, two hundred three million, thirty-one thousand, one hundred".