361300021 has 2 divisors, whose sum is σ = 361300022. Its totient is φ = 361300020.

The previous prime is 361300003. The next prime is 361300033. The reversal of 361300021 is 120003163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 182115025 + 179184996 = 13495^2 + 13386^2 .

It is a cyclic number.

It is not a de Polignac number, because 361300021 - 2⁵ = 361299989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 361299968 and 361300004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361309021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 180650010 + 180650011.

It is an arithmetic number, because the mean of its divisors is an integer number (180650011).

Almost surely, 2^361300021 is an apocalyptic number.

It is an amenable number.

361300021 is a deficient number, since it is larger than the sum of its proper divisors (1).

361300021 is an equidigital number, since it uses as much as digits as its factorization.

361300021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 361300021 is about 19007.8936497446. The cubic root of 361300021 is about 712.2339351705.

Adding to 361300021 its reverse (120003163), we get a palindrome (481303184).

The spelling of 361300021 in words is "three hundred sixty-one million, three hundred thousand, twenty-one".