20410300381 has 2 divisors, whose sum is σ = 20410300382. Its totient is φ = 20410300380.

The previous prime is 20410300333. The next prime is 20410300399. The reversal of 20410300381 is 18300301402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11473623225 + 8936677156 = 107115^2 + 94534^2 .

It is a cyclic number.

It is not a de Polignac number, because 20410300381 - 2¹¹ = 20410298333 is a prime.

It is a super-2 number, since 2×20410300381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20410300331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10205150190 + 10205150191.

It is an arithmetic number, because the mean of its divisors is an integer number (10205150191).

Almost surely, 2^20410300381 is an apocalyptic number.

It is an amenable number.

20410300381 is a deficient number, since it is larger than the sum of its proper divisors (1).

20410300381 is an equidigital number, since it uses as much as digits as its factorization.

20410300381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20410300381 its reverse (18300301402), we get a palindrome (38710601783).

The spelling of 20410300381 in words is "twenty billion, four hundred ten million, three hundred thousand, three hundred eighty-one".