11312543000 has 256 divisors, whose sum is σ = 30730752000. Its totient is φ = 3854592000.

The previous prime is 11312542999. The next prime is 11312543023. The reversal of 11312543000 is 34521311.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 23616761 + ... + 23617239.

It is an arithmetic number, because the mean of its divisors is an integer number (120042000).

Almost surely, 2^11312543000 is an apocalyptic number.

11312543000 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 11312543000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15365376000).

11312543000 is an abundant number, since it is smaller than the sum of its proper divisors (19418209000).

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

11312543000 is a wasteful number, since it uses less digits than its factorization.

11312543000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643 (or 629 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The spelling of 11312543000 in words is "eleven billion, three hundred twelve million, five hundred forty-three thousand".