20862113 has 2 divisors, whose sum is σ = 20862114. Its totient is φ = 20862112.

The previous prime is 20862097. The next prime is 20862119. The reversal of 20862113 is 31126802.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20857489 + 4624 = 4567^2 + 68^2 .

It is a cyclic number.

It is not a de Polignac number, because 20862113 - 2⁴ = 20862097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (20862119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10431056 + 10431057.

It is an arithmetic number, because the mean of its divisors is an integer number (10431057).

Almost surely, 2^20862113 is an apocalyptic number.

It is an amenable number.

20862113 is a deficient number, since it is larger than the sum of its proper divisors (1).

20862113 is an equidigital number, since it uses as much as digits as its factorization.

20862113 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 23.

The square root of 20862113 is about 4567.5062123658. The cubic root of 20862113 is about 275.2872502625.

Adding to 20862113 its reverse (31126802), we get a palindrome (51988915).

The spelling of 20862113 in words is "twenty million, eight hundred sixty-two thousand, one hundred thirteen".