1043513343409 has 2 divisors, whose sum is σ = 1043513343410. Its totient is φ = 1043513343408.

The previous prime is 1043513343311. The next prime is 1043513343421. The reversal of 1043513343409 is 9043433153401.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1014798346384 + 28714997025 = 1007372^2 + 169455^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043513343409 - 2²¹ = 1043511246257 is a prime.

It is not a weakly prime, because it can be changed into another prime (1043513343449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521756671704 + 521756671705.

It is an arithmetic number, because the mean of its divisors is an integer number (521756671705).

Almost surely, 2^{1043513343409} is an apocalyptic number.

It is an amenable number.

1043513343409 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043513343409 is an equidigital number, since it uses as much as digits as its factorization.

1043513343409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 40.

The spelling of 1043513343409 in words is "one trillion, forty-three billion, five hundred thirteen million, three hundred forty-three thousand, four hundred nine".