102543000000 has 784 divisors, whose sum is σ = 409569757440. Its totient is φ = 22118400000.

The previous prime is 102542999989. The next prime is 102543000013. The reversal of 102543000000 is 345201.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 111 ways as a sum of consecutive naturals, for example, 398999872 + ... + 399000128.

Almost surely, 2^102543000000 is an apocalyptic number.

102543000000 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 102543000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204784878720).

102543000000 is an abundant number, since it is smaller than the sum of its proper divisors (307026757440).

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

102543000000 is an frugal number, since it uses more digits than its factorization.

102543000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328 (or 293 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

Adding to 102543000000 its reverse (345201), we get a palindrome (102543345201).

The spelling of 102543000000 in words is "one hundred two billion, five hundred forty-three million", and thus it is an aban number.