1043303323400 has 96 divisors (see below), whose sum is σ = 2614951148040. Its totient is φ = 384824463360.

The previous prime is 1043303323367. The next prime is 1043303323409. The reversal of 1043303323400 is 43233033401.

It is a happy number.

It can be written as a sum of positive squares in 12 ways, for example, as 197848819204 + 845454504196 = 444802^2 + 919486^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 1043303323400.

It is not an unprimeable number, because it can be changed into a prime (1043303323409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2334842 + ... + 2745558.

Almost surely, 2^{1043303323400} is an apocalyptic number.

1043303323400 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 1043303323400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1307475574020).

1043303323400 is an abundant number, since it is smaller than the sum of its proper divisors (1571647824640).

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

1043303323400 is a wasteful number, since it uses less digits than its factorization.

1043303323400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411723 (or 411714 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 1043303323400 its reverse (43233033401), we get a palindrome (1086536356801).

The spelling of 1043303323400 in words is "one trillion, forty-three billion, three hundred three million, three hundred twenty-three thousand, four hundred".