1043425421 has 2 divisors, whose sum is σ = 1043425422. Its totient is φ = 1043425420.

The previous prime is 1043425417. The next prime is 1043425433. The reversal of 1043425421 is 1245243401.

1043425421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 969637321 + 73788100 = 31139^2 + 8590^2 .

It is an emirp because it is prime and its reverse (1245243401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1043425421 - 2² = 1043425417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1043425021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 521712710 + 521712711.

It is an arithmetic number, because the mean of its divisors is an integer number (521712711).

Almost surely, 2^1043425421 is an apocalyptic number.

It is an amenable number.

1043425421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1043425421 is an equidigital number, since it uses as much as digits as its factorization.

1043425421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1043425421 is about 32302.0962322881. The cubic root of 1043425421 is about 1014.2705237643.

Adding to 1043425421 its reverse (1245243401), we get a palindrome (2288668822).

The spelling of 1043425421 in words is "one billion, forty-three million, four hundred twenty-five thousand, four hundred twenty-one".