1000300421 has 2 divisors, whose sum is σ = 1000300422. Its totient is φ = 1000300420.

The previous prime is 1000300409. The next prime is 1000300423. The reversal of 1000300421 is 1240030001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 595848100 + 404452321 = 24410^2 + 20111^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000300421 - 2²² = 996106117 is a prime.

Together with 1000300423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000300423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500150210 + 500150211.

It is an arithmetic number, because the mean of its divisors is an integer number (500150211).

Almost surely, 2^1000300421 is an apocalyptic number.

It is an amenable number.

1000300421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000300421 is an equidigital number, since it uses as much as digits as its factorization.

1000300421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1000300421 is about 31627.5263180667. The cubic root of 1000300421 is about 1000.1001303069.

Adding to 1000300421 its reverse (1240030001), we get a palindrome (2240330422).

The spelling of 1000300421 in words is "one billion, three hundred thousand, four hundred twenty-one".