10242430421 has 4 divisors (see below), whose sum is σ = 10242673644. Its totient is φ = 10242187200.

The previous prime is 10242430417. The next prime is 10242430433. The reversal of 10242430421 is 12403424201.

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 216413521 + 10026016900 = 14711^2 + 100130^2 .

It is a cyclic number.

It is not a de Polignac number, because 10242430421 - 2² = 10242430417 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10242430441) 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, 40340 + ... + 148701.

It is an arithmetic number, because the mean of its divisors is an integer number (2560668411).

Almost surely, 2^10242430421 is an apocalyptic number.

It is an amenable number.

10242430421 is a deficient number, since it is larger than the sum of its proper divisors (243223).

10242430421 is an equidigital number, since it uses as much as digits as its factorization.

10242430421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243222.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 10242430421 its reverse (12403424201), we get a palindrome (22645854622).

The spelling of 10242430421 in words is "ten billion, two hundred forty-two million, four hundred thirty thousand, four hundred twenty-one".