1043340313020 has 96 divisors (see below), whose sum is σ = 2954902809600. Its totient is φ = 275046562560.

The previous prime is 1043340313003. The next prime is 1043340313027. The reversal of 1043340313020 is 203130433401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043340313027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1609789 + ... + 2162891.

It is an arithmetic number, because the mean of its divisors is an integer number (30780237600).

Almost surely, 2^{1043340313020} is an apocalyptic number.

1043340313020 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 1043340313020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1477451404800).

1043340313020 is an abundant number, since it is smaller than the sum of its proper divisors (1911562496580).

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

1043340313020 is a wasteful number, since it uses less digits than its factorization.

1043340313020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 553475 (or 553473 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 1043340313020 its reverse (203130433401), we get a palindrome (1246470746421).

The spelling of 1043340313020 in words is "one trillion, forty-three billion, three hundred forty million, three hundred thirteen thousand, twenty".