202320401 has 2 divisors, whose sum is σ = 202320402. Its totient is φ = 202320400.

The previous prime is 202320389. The next prime is 202320409. The reversal of 202320401 is 104023202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174768400 + 27552001 = 13220^2 + 5249^2 .

It is a cyclic number.

It is not a de Polignac number, because 202320401 - 2⁶ = 202320337 is a prime.

It is not a weakly prime, because it can be changed into another prime (202320409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101160200 + 101160201.

It is an arithmetic number, because the mean of its divisors is an integer number (101160201).

Almost surely, 2^202320401 is an apocalyptic number.

It is an amenable number.

202320401 is a deficient number, since it is larger than the sum of its proper divisors (1).

202320401 is an equidigital number, since it uses as much as digits as its factorization.

202320401 is an odious number, because the sum of its binary digits is odd.

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

The square root of 202320401 is about 14223.9376053187. The cubic root of 202320401 is about 587.0564883285.

Adding to 202320401 its reverse (104023202), we get a palindrome (306343603).

The spelling of 202320401 in words is "two hundred two million, three hundred twenty thousand, four hundred one".