1043424424421 has 4 divisors (see below), whose sum is σ = 1044733615212. Its totient is φ = 1042115233632.

The previous prime is 1043424424417. The next prime is 1043424424433. The reversal of 1043424424421 is 1244244243401.

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 529852968100 + 513571456321 = 727910^2 + 716639^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043424424421 - 2² = 1043424424417 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 (1043420424421) 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, 654594200 + ... + 654595793.

It is an arithmetic number, because the mean of its divisors is an integer number (261183403803).

Almost surely, 2^{1043424424421} is an apocalyptic number.

It is an amenable number.

1043424424421 is a deficient number, since it is larger than the sum of its proper divisors (1309190791).

1043424424421 is an equidigital number, since it uses as much as digits as its factorization.

1043424424421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1309190790.

The product of its (nonzero) digits is 98304, while the sum is 35.

Adding to 1043424424421 its reverse (1244244243401), we get a palindrome (2287668667822).

The spelling of 1043424424421 in words is "one trillion, forty-three billion, four hundred twenty-four million, four hundred twenty-four thousand, four hundred twenty-one".