2100065047 has 2 divisors, whose sum is σ = 2100065048. Its totient is φ = 2100065046.

The previous prime is 2100064999. The next prime is 2100065069. The reversal of 2100065047 is 7405600012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2100065047 - 2⁷ = 2100064919 is a prime.

It is a super-2 number, since 2×2100065047² = 8820546403262224418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100060047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050032523 + 1050032524.

It is an arithmetic number, because the mean of its divisors is an integer number (1050032524).

Almost surely, 2^2100065047 is an apocalyptic number.

2100065047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100065047 is an equidigital number, since it uses as much as digits as its factorization.

2100065047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2100065047 is about 45826.4666650179. The cubic root of 2100065047 is about 1280.5923867292.

Adding to 2100065047 its reverse (7405600012), we get a palindrome (9505665059).

The spelling of 2100065047 in words is "two billion, one hundred million, sixty-five thousand, forty-seven".