11143500000 has 672 divisors, whose sum is σ = 42524455680. Its totient is φ = 2534400000.

The previous prime is 11143499993. The next prime is 11143500007. The reversal of 11143500000 is 534111.

It is an interprime number because it is at equal distance from previous prime (11143499993) and next prime (11143500007).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11143500007) by changing a digit.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 484499989 + ... + 484500011.

It is an arithmetic number, because the mean of its divisors is an integer number (63280440).

Almost surely, 2^11143500000 is an apocalyptic number.

11143500000 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 11143500000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21262227840).

11143500000 is an abundant number, since it is smaller than the sum of its proper divisors (31380955680).

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

11143500000 is an equidigital number, since it uses as much as digits as its factorization.

11143500000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102 (or 69 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The spelling of 11143500000 in words is "eleven billion, one hundred forty-three million, five hundred thousand".