1043320000400 has 60 divisors (see below), whose sum is σ = 2540913033732. Its totient is φ = 411611166720.

The previous prime is 1043320000391. The next prime is 1043320000441. The reversal of 1043320000400 is 40000233401.

It can be written as a sum of positive squares in 6 ways, for example, as 33785380864 + 1009534619536 = 183808^2 + 1004756^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17835869 + ... + 17894268.

Almost surely, 2^{1043320000400} is an apocalyptic number.

1043320000400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1043320000400 is an abundant number, since it is smaller than the sum of its proper divisors (1497593033332).

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

1043320000400 is a wasteful number, since it uses less digits than its factorization.

1043320000400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35730228 (or 35730217 counting only the distinct ones).

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

Adding to 1043320000400 its reverse (40000233401), we get a palindrome (1083320233801).

The spelling of 1043320000400 in words is "one trillion, forty-three billion, three hundred twenty million, four hundred", and thus it is an aban number.