20110481 has 2 divisors, whose sum is σ = 20110482. Its totient is φ = 20110480.

The previous prime is 20110429. The next prime is 20110483. The reversal of 20110481 is 18401102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20106256 + 4225 = 4484^2 + 65^2 .

It is a cyclic number.

It is not a de Polignac number, because 20110481 - 2²² = 15916177 is a prime.

It is a super-2 number, since 2×20110481² = 808862892102722, which contains 22 as substring.

Together with 20110483, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20110483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055240 + 10055241.

It is an arithmetic number, because the mean of its divisors is an integer number (10055241).

Almost surely, 2^20110481 is an apocalyptic number.

It is an amenable number.

20110481 is a deficient number, since it is larger than the sum of its proper divisors (1).

20110481 is an equidigital number, since it uses as much as digits as its factorization.

20110481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

The square root of 20110481 is about 4484.4710947892. The cubic root of 20110481 is about 271.9406634192.

Adding to 20110481 its reverse (18401102), we get a palindrome (38511583).

The spelling of 20110481 in words is "twenty million, one hundred ten thousand, four hundred eighty-one".