1043350440420 has 96 divisors (see below), whose sum is σ = 3016796267520. Its totient is φ = 269146644480.

The previous prime is 1043350440409. The next prime is 1043350440437. The reversal of 1043350440420 is 240440533401.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4714816 + ... + 4931144.

It is an arithmetic number, because the mean of its divisors is an integer number (31424961120).

Almost surely, 2^{1043350440420} is an apocalyptic number.

1043350440420 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 1043350440420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1508398133760).

1043350440420 is an abundant number, since it is smaller than the sum of its proper divisors (1973445827100).

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

1043350440420 is a wasteful number, since it uses less digits than its factorization.

1043350440420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218965 (or 218963 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 1043350440420 its reverse (240440533401), we get a palindrome (1283790973821).

The spelling of 1043350440420 in words is "one trillion, forty-three billion, three hundred fifty million, four hundred forty thousand, four hundred twenty".