202423030213 has 2 divisors, whose sum is σ = 202423030214. Its totient is φ = 202423030212.

The previous prime is 202423030097. The next prime is 202423030217. The reversal of 202423030213 is 312030324202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142825038084 + 59597992129 = 377922^2 + 244127^2 .

It is a cyclic number.

It is not a de Polignac number, because 202423030213 - 2⁹ = 202423029701 is a prime.

It is a super-2 number, since 2×202423030213² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202423030217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101211515106 + 101211515107.

It is an arithmetic number, because the mean of its divisors is an integer number (101211515107).

Almost surely, 2^202423030213 is an apocalyptic number.

It is an amenable number.

202423030213 is a deficient number, since it is larger than the sum of its proper divisors (1).

202423030213 is an equidigital number, since it uses as much as digits as its factorization.

202423030213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 202423030213 its reverse (312030324202), we get a palindrome (514453354415).

The spelling of 202423030213 in words is "two hundred two billion, four hundred twenty-three million, thirty thousand, two hundred thirteen".