120103405543000 has 256 divisors, whose sum is σ = 310135390755840. Its totient is φ = 43170656256000.

The previous prime is 120103405542961. The next prime is 120103405543007. The reversal of 120103405543000 is 345504301021.

It is a self number, because there is not a number n which added to its sum of digits gives 120103405543000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120103405543007) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 619654104 + ... + 619847896.

It is an arithmetic number, because the mean of its divisors is an integer number (1211466370140).

Almost surely, 2^{120103405543000} is an apocalyptic number.

120103405543000 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 120103405543000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155067695377920).

120103405543000 is an abundant number, since it is smaller than the sum of its proper divisors (190031985212840).

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

120103405543000 is a wasteful number, since it uses less digits than its factorization.

120103405543000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194475 (or 194461 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 120103405543000 its reverse (345504301021), we get a palindrome (120448909844021).

The spelling of 120103405543000 in words is "one hundred twenty trillion, one hundred three billion, four hundred five million, five hundred forty-three thousand".