1043322421 has 4 divisors (see below), whose sum is σ = 1045082412. Its totient is φ = 1041562432.

The previous prime is 1043322407. The next prime is 1043322431. The reversal of 1043322421 is 1242233401.

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 593458321 + 449864100 = 24361^2 + 21210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1043322421 is a prime.

It is a super-2 number, since 2×1043322421² = 2177043348322602482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1043322392 and 1043322401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043322431) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 879106 + ... + 880291.

It is an arithmetic number, because the mean of its divisors is an integer number (261270603).

Almost surely, 2^1043322421 is an apocalyptic number.

It is an amenable number.

1043322421 is a deficient number, since it is larger than the sum of its proper divisors (1759991).

1043322421 is an equidigital number, since it uses as much as digits as its factorization.

1043322421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1759990.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 1043322421 is about 32300.5018691661. The cubic root of 1043322421 is about 1014.2371486585.

Adding to 1043322421 its reverse (1242233401), we get a palindrome (2285555822).

The spelling of 1043322421 in words is "one billion, forty-three million, three hundred twenty-two thousand, four hundred twenty-one".