1043453243213 has 4 divisors (see below), whose sum is σ = 1043670588828. Its totient is φ = 1043235897600.

The previous prime is 1043453243167. The next prime is 1043453243221. The reversal of 1043453243213 is 3123423543401.

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 441869961289 + 601583281924 = 664733^2 + 775618^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043453243213 - 2¹⁶ = 1043453177677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043453243233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108665606 + ... + 108675207.

It is an arithmetic number, because the mean of its divisors is an integer number (260917647207).

Almost surely, 2^{1043453243213} is an apocalyptic number.

It is an amenable number.

1043453243213 is a deficient number, since it is larger than the sum of its proper divisors (217345615).

1043453243213 is an equidigital number, since it uses as much as digits as its factorization.

1043453243213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217345614.

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 1043453243213 its reverse (3123423543401), we get a palindrome (4166876786614).

The spelling of 1043453243213 in words is "one trillion, forty-three billion, four hundred fifty-three million, two hundred forty-three thousand, two hundred thirteen".