The square root of 2403120040000 is 1550200.
It is a Duffinian number.
It is an unprimeable number.
Almost surely, 22403120040000 is an apocalyptic number.
2403120040000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.
2403120040000 is the 1550200-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 2403120040000
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
2403120040000 is an frugal number, since it uses more digits than its factorization.
2403120040000 is an odious number, because the sum of its binary digits is odd.
Multiplying 2403120040000 by its sum of digits (16), we get a square (38449920640000 = 62008002).
2403120040000 divided by its sum of digits (16) gives a square (150195002500 = 3875502).
Adding to 2403120040000 its reverse (400213042), we get a palindrome (2403520253042).
The spelling of 2403120040000 in words is "two trillion, four hundred three billion, one hundred twenty million, forty thousand".