2021021053 has 2 divisors, whose sum is σ = 2021021054. Its totient is φ = 2021021052.

The previous prime is 2021021039. The next prime is 2021021059. The reversal of 2021021053 is 3501201202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2011791609 + 9229444 = 44853^2 + 3038^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021021053 - 2⁵ = 2021021021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021021059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010510526 + 1010510527.

It is an arithmetic number, because the mean of its divisors is an integer number (1010510527).

Almost surely, 2^2021021053 is an apocalyptic number.

It is an amenable number.

2021021053 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021021053 is an equidigital number, since it uses as much as digits as its factorization.

2021021053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2021021053 is about 44955.7677389676. The cubic root of 2021021053 is about 1264.3198191031.

Adding to 2021021053 its reverse (3501201202), we get a palindrome (5522222255).

The spelling of 2021021053 in words is "two billion, twenty-one million, twenty-one thousand, fifty-three".