11143409250 has 64 divisors (see below), whose sum is σ = 27905125248. Its totient is φ = 2961835200.

The previous prime is 11143409201. The next prime is 11143409261. The reversal of 11143409250 is 5290434111.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 206052 + ... + 254448.

It is an arithmetic number, because the mean of its divisors is an integer number (436017582).

Almost surely, 2^11143409250 is an apocalyptic number.

11143409250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11143409250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13952562624).

11143409250 is an abundant number, since it is smaller than the sum of its proper divisors (16761715998).

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

11143409250 is a wasteful number, since it uses less digits than its factorization.

11143409250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48724 (or 48714 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 11143409250 in words is "eleven billion, one hundred forty-three million, four hundred nine thousand, two hundred fifty".