1043120423400 has 384 divisors, whose sum is σ = 3565014681600. Its totient is φ = 250213017600.

The previous prime is 1043120423399. The next prime is 1043120423413. The reversal of 1043120423400 is 43240213401.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 257114172 + ... + 257118228.

It is an arithmetic number, because the mean of its divisors is an integer number (9283892400).

Almost surely, 2^{1043120423400} is an apocalyptic number.

1043120423400 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 1043120423400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1782507340800).

1043120423400 is an abundant number, since it is smaller than the sum of its proper divisors (2521894258200).

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

1043120423400 is a wasteful number, since it uses less digits than its factorization.

1043120423400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4489 (or 4480 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1043120423400 its reverse (43240213401), we get a palindrome (1086360636801).

The spelling of 1043120423400 in words is "one trillion, forty-three billion, one hundred twenty million, four hundred twenty-three thousand, four hundred".