20202341381 has 2 divisors, whose sum is σ = 20202341382. Its totient is φ = 20202341380.

The previous prime is 20202341363. The next prime is 20202341389. The reversal of 20202341381 is 18314320202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17054009281 + 3148332100 = 130591^2 + 56110^2 .

It is a cyclic number.

It is not a de Polignac number, because 20202341381 - 2⁶ = 20202341317 is a prime.

It is a super-2 number, since 2×20202341381² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20202341381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20202341389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10101170690 + 10101170691.

It is an arithmetic number, because the mean of its divisors is an integer number (10101170691).

Almost surely, 2^20202341381 is an apocalyptic number.

It is an amenable number.

20202341381 is a deficient number, since it is larger than the sum of its proper divisors (1).

20202341381 is an equidigital number, since it uses as much as digits as its factorization.

20202341381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 20202341381 its reverse (18314320202), we get a palindrome (38516661583).

The spelling of 20202341381 in words is "twenty billion, two hundred two million, three hundred forty-one thousand, three hundred eighty-one".