11031203000 has 64 divisors (see below), whose sum is σ = 25859714400. Its totient is φ = 4404499200.

The previous prime is 11031202991. The next prime is 11031203003. The reversal of 11031203000 is 30213011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031203003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559307 + ... + 578693.

Almost surely, 2^11031203000 is an apocalyptic number.

11031203000 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 11031203000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12929857200).

11031203000 is an abundant number, since it is smaller than the sum of its proper divisors (14828511400).

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

11031203000 is a wasteful number, since it uses less digits than its factorization.

11031203000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19977 (or 19963 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 11031203000 its reverse (30213011), we get a palindrome (11061416011).

The spelling of 11031203000 in words is "eleven billion, thirty-one million, two hundred three thousand".