300202421 has 2 divisors, whose sum is σ = 300202422. Its totient is φ = 300202420.

The previous prime is 300202387. The next prime is 300202433. The reversal of 300202421 is 124202003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275062225 + 25140196 = 16585^2 + 5014^2 .

It is an emirp because it is prime and its reverse (124202003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 300202421 - 2¹⁰ = 300201397 is a prime.

It is a super-2 number, since 2×300202421² = 180242987148522482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 300202396 and 300202405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (300202121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 150101210 + 150101211.

It is an arithmetic number, because the mean of its divisors is an integer number (150101211).

Almost surely, 2^300202421 is an apocalyptic number.

It is an amenable number.

300202421 is a deficient number, since it is larger than the sum of its proper divisors (1).

300202421 is an equidigital number, since it uses as much as digits as its factorization.

300202421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 300202421 is about 17326.3504812756. The cubic root of 300202421 is about 669.5834798837.

Adding to 300202421 its reverse (124202003), we get a palindrome (424404424).

The spelling of 300202421 in words is "three hundred million, two hundred two thousand, four hundred twenty-one".