2130544510021 has 2 divisors, whose sum is σ = 2130544510022. Its totient is φ = 2130544510020.

The previous prime is 2130544509991. The next prime is 2130544510027. The reversal of 2130544510021 is 1200154450312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1552800100996 + 577744409025 = 1246114^2 + 760095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2130544510021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2130544510027) 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, 1065272255010 + 1065272255011.

It is an arithmetic number, because the mean of its divisors is an integer number (1065272255011).

Almost surely, 2^{2130544510021} is an apocalyptic number.

It is an amenable number.

2130544510021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130544510021 is an equidigital number, since it uses as much as digits as its factorization.

2130544510021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 2130544510021 its reverse (1200154450312), we get a palindrome (3330698960333).

The spelling of 2130544510021 in words is "two trillion, one hundred thirty billion, five hundred forty-four million, five hundred ten thousand, twenty-one".