20812002067 has 2 divisors, whose sum is σ = 20812002068. Its totient is φ = 20812002066.

The previous prime is 20812002059. The next prime is 20812002103. The reversal of 20812002067 is 76020021802.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20812002067 - 2³ = 20812002059 is a prime.

It is not a weakly prime, because it can be changed into another prime (20812002037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10406001033 + 10406001034.

It is an arithmetic number, because the mean of its divisors is an integer number (10406001034).

Almost surely, 2^20812002067 is an apocalyptic number.

20812002067 is a deficient number, since it is larger than the sum of its proper divisors (1).

20812002067 is an equidigital number, since it uses as much as digits as its factorization.

20812002067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

Adding to 20812002067 its reverse (76020021802), we get a palindrome (96832023869).

The spelling of 20812002067 in words is "twenty billion, eight hundred twelve million, two thousand, sixty-seven".