2021134403047 has 2 divisors, whose sum is σ = 2021134403048. Its totient is φ = 2021134403046.

The previous prime is 2021134402999. The next prime is 2021134403063. The reversal of 2021134403047 is 7403044311202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021134403047 - 2⁷ = 2021134402919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021134403147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010567201523 + 1010567201524.

It is an arithmetic number, because the mean of its divisors is an integer number (1010567201524).

Almost surely, 2^{2021134403047} is an apocalyptic number.

2021134403047 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021134403047 is an equidigital number, since it uses as much as digits as its factorization.

2021134403047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 31.

Adding to 2021134403047 its reverse (7403044311202), we get a palindrome (9424178714249).

The spelling of 2021134403047 in words is "two trillion, twenty-one billion, one hundred thirty-four million, four hundred three thousand, forty-seven".