103243003440 has 160 divisors (see below), whose sum is σ = 328163996160. Its totient is φ = 26836389888.

The previous prime is 103243003429. The next prime is 103243003459. The reversal of 103243003440 is 44300342301.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 103243003440.

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, 5181016 + ... + 5200904.

It is an arithmetic number, because the mean of its divisors is an integer number (2051024976).

Almost surely, 2^103243003440 is an apocalyptic number.

103243003440 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 103243003440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164081998080).

103243003440 is an abundant number, since it is smaller than the sum of its proper divisors (224920992720).

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

103243003440 is a wasteful number, since it uses less digits than its factorization.

103243003440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20451 (or 20445 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 103243003440 its reverse (44300342301), we get a palindrome (147543345741).

The spelling of 103243003440 in words is "one hundred three billion, two hundred forty-three million, three thousand, four hundred forty".