20202361 has 2 divisors, whose sum is σ = 20202362. Its totient is φ = 20202360.

The previous prime is 20202353. The next prime is 20202379. The reversal of 20202361 is 16320202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19971961 + 230400 = 4469^2 + 480^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202361 - 2³ = 20202353 is a prime.

It is not a weakly prime, because it can be changed into another prime (20202311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101180 + 10101181.

It is an arithmetic number, because the mean of its divisors is an integer number (10101181).

Almost surely, 2^20202361 is an apocalyptic number.

It is an amenable number.

20202361 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202361 is an equidigital number, since it uses as much as digits as its factorization.

20202361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 20202361 is about 4494.7036609770. The cubic root of 20202361 is about 272.3541783568.

Adding to 20202361 its reverse (16320202), we get a palindrome (36522563).

The spelling of 20202361 in words is "twenty million, two hundred two thousand, three hundred sixty-one".