1043430502505 has 4 divisors (see below), whose sum is σ = 1252116603012. Its totient is φ = 834744402000.

The previous prime is 1043430502493. The next prime is 1043430502519. The reversal of 1043430502505 is 5052050343401.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 498486833296 + 544943669209 = 706036^2 + 738203^2 .

It is not a de Polignac number, because 1043430502505 - 2⁸ = 1043430502249 is a prime.

It is a super-2 number, since 2×1043430502505² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 104343050246 + ... + 104343050255.

It is an arithmetic number, because the mean of its divisors is an integer number (313029150753).

Almost surely, 2^{1043430502505} is an apocalyptic number.

It is an amenable number.

1043430502505 is a deficient number, since it is larger than the sum of its proper divisors (208686100507).

1043430502505 is an equidigital number, since it uses as much as digits as its factorization.

1043430502505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208686100506.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 1043430502505 its reverse (5052050343401), we get a palindrome (6095480845906).

The spelling of 1043430502505 in words is "one trillion, forty-three billion, four hundred thirty million, five hundred two thousand, five hundred five".