11000131000 has 128 divisors (see below), whose sum is σ = 26450424000. Its totient is φ = 4279564800.

The previous prime is 11000130989. The next prime is 11000131001. The reversal of 11000131000 is 13100011.

It is a happy number.

It is a super-2 number, since 2×11000131000² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000131001) 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, 15006634 + ... + 15007366.

Almost surely, 2^11000131000 is an apocalyptic number.

11000131000 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 11000131000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13225212000).

11000131000 is an abundant number, since it is smaller than the sum of its proper divisors (15450293000).

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

11000131000 is a wasteful number, since it uses less digits than its factorization.

11000131000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1146 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 3, while the sum is 7.

Adding to 11000131000 its reverse (13100011), we get a palindrome (11013231011).

The spelling of 11000131000 in words is "eleven billion, one hundred thirty-one thousand".