1043320040000 has 140 divisors (see below), whose sum is σ = 2956680359424. Its totient is φ = 357709632000.

The previous prime is 1043320039907. The next prime is 1043320040027. The reversal of 1043320040000 is 400233401.

It is a tau number, because it is divible by the number of its divisors (140).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1583072 + ... + 2143071.

Almost surely, 2^{1043320040000} is an apocalyptic number.

1043320040000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1043320040000 is an abundant number, since it is smaller than the sum of its proper divisors (1913360319424).

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

1043320040000 is an frugal number, since it uses more digits than its factorization.

1043320040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3726182 (or 3726157 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 1043320040000 its reverse (400233401), we get a palindrome (1043720273401).

The spelling of 1043320040000 in words is "one trillion, forty-three billion, three hundred twenty million, forty thousand".