350300021 has 2 divisors, whose sum is σ = 350300022. Its totient is φ = 350300020.

The previous prime is 350299997. The next prime is 350300029. The reversal of 350300021 is 120003053.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 330148900 + 20151121 = 18170^2 + 4489^2 .

It is an emirp because it is prime and its reverse (120003053) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 350300021 - 2²² = 346105717 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 350299969 and 350300005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (350300029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175150010 + 175150011.

It is an arithmetic number, because the mean of its divisors is an integer number (175150011).

Almost surely, 2^350300021 is an apocalyptic number.

It is an amenable number.

350300021 is a deficient number, since it is larger than the sum of its proper divisors (1).

350300021 is an equidigital number, since it uses as much as digits as its factorization.

350300021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 14.

The square root of 350300021 is about 18716.3036147633. The cubic root of 350300021 is about 704.9311811838.

Adding to 350300021 its reverse (120003053), we get a palindrome (470303074).

The spelling of 350300021 in words is "three hundred fifty million, three hundred thousand, twenty-one".