20340101 has 2 divisors, whose sum is σ = 20340102. Its totient is φ = 20340100.

The previous prime is 20340097. The next prime is 20340167. The reversal of 20340101 is 10104302.

It is a happy number.

It is a Cunningham number, because it is equal to 4510²+1.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20340100 + 1 = 4510^2 + 1^2 .

It is a cyclic number.

It is not a de Polignac number, because 20340101 - 2² = 20340097 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20340301) 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, 10170050 + 10170051.

It is an arithmetic number, because the mean of its divisors is an integer number (10170051).

Almost surely, 2^20340101 is an apocalyptic number.

It is an amenable number.

20340101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20340101 is an equidigital number, since it uses as much as digits as its factorization.

20340101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 20340101 is about 4510.0001108647. Note that the first 3 decimals coincide. The cubic root of 20340101 is about 272.9717485647.

Adding to 20340101 its reverse (10104302), we get a palindrome (30444403).

It can be divided in two parts, 203 and 40101, that added together give a palindrome (40304).

The spelling of 20340101 in words is "twenty million, three hundred forty thousand, one hundred one".