20412101 has 2 divisors, whose sum is σ = 20412102. Its totient is φ = 20412100.

The previous prime is 20412089. The next prime is 20412113. The reversal of 20412101 is 10121402.

It is a balanced prime because it is at equal distance from previous prime (20412089) and next prime (20412113).

It can be written as a sum of positive squares in only one way, i.e., 19351201 + 1060900 = 4399^2 + 1030^2 .

It is a cyclic number.

It is not a de Polignac number, because 20412101 - 2⁶ = 20412037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20412151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206050 + 10206051.

It is an arithmetic number, because the mean of its divisors is an integer number (10206051).

Almost surely, 2^20412101 is an apocalyptic number.

20412101 is the 2021-st centered decagonal number.

It is an amenable number.

20412101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20412101 is an equidigital number, since it uses as much as digits as its factorization.

20412101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 20412101 is about 4517.9753208711. The cubic root of 20412101 is about 273.2934582257.

Adding to 20412101 its reverse (10121402), we get a palindrome (30533503).

The spelling of 20412101 in words is "twenty million, four hundred twelve thousand, one hundred one".