1040043013120 has 352 divisors, whose sum is σ = 2674135296000. Its totient is φ = 387251994624.

The previous prime is 1040043013103. The next prime is 1040043013129. The reversal of 1040043013120 is 213103400401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040043013129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 743418181 + ... + 743419579.

Almost surely, 2^{1040043013120} is an apocalyptic number.

1040043013120 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 1040043013120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1337067648000).

1040043013120 is an abundant number, since it is smaller than the sum of its proper divisors (1634092282880).

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

1040043013120 is a wasteful number, since it uses less digits than its factorization.

1040043013120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1613 (or 1595 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1040043013120 its reverse (213103400401), we get a palindrome (1253146413521).

The spelling of 1040043013120 in words is "one trillion, forty billion, forty-three million, thirteen thousand, one hundred twenty".