11103031000 has 128 divisors (see below), whose sum is σ = 26413283520. Its totient is φ = 4368000000.

The previous prime is 11103030979. The next prime is 11103031001. The reversal of 11103031000 is 13030111.

It is a super-2 number, since 2×11103031000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11103031001) 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, 21310740 + ... + 21311260.

Almost surely, 2^11103031000 is an apocalyptic number.

11103031000 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 11103031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13206641760).

11103031000 is an abundant number, since it is smaller than the sum of its proper divisors (15310252520).

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

11103031000 is a wasteful number, since it uses less digits than its factorization.

11103031000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 854 (or 840 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 10.

Adding to 11103031000 its reverse (13030111), we get a palindrome (11116061111).

The spelling of 11103031000 in words is "eleven billion, one hundred three million, thirty-one thousand".