20010410261 has 2 divisors, whose sum is σ = 20010410262. Its totient is φ = 20010410260.

The previous prime is 20010410243. The next prime is 20010410309. The reversal of 20010410261 is 16201401002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19998202225 + 12208036 = 141415^2 + 3494^2 .

It is a cyclic number.

It is not a de Polignac number, because 20010410261 - 2¹⁴ = 20010393877 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20010470261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005205130 + 10005205131.

It is an arithmetic number, because the mean of its divisors is an integer number (10005205131).

Almost surely, 2^20010410261 is an apocalyptic number.

It is an amenable number.

20010410261 is a deficient number, since it is larger than the sum of its proper divisors (1).

20010410261 is an equidigital number, since it uses as much as digits as its factorization.

20010410261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20010410261 its reverse (16201401002), we get a palindrome (36211811263).

The spelling of 20010410261 in words is "twenty billion, ten million, four hundred ten thousand, two hundred sixty-one".