2021030051 has 2 divisors, whose sum is σ = 2021030052. Its totient is φ = 2021030050.

The previous prime is 2021030029. The next prime is 2021030069. The reversal of 2021030051 is 1500301202.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2021030051 - 2¹⁰ = 2021029027 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021030251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010515025 + 1010515026.

It is an arithmetic number, because the mean of its divisors is an integer number (1010515026).

Almost surely, 2^2021030051 is an apocalyptic number.

2021030051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021030051 is an equidigital number, since it uses as much as digits as its factorization.

2021030051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 2021030051 is about 44955.8678150027. The cubic root of 2021030051 is about 1264.3216954373.

Adding to 2021030051 its reverse (1500301202), we get a palindrome (3521331253).

The spelling of 2021030051 in words is "two billion, twenty-one million, thirty thousand, fifty-one".