212303121053 has 2 divisors, whose sum is σ = 212303121054. Its totient is φ = 212303121052.

The previous prime is 212303121049. The next prime is 212303121097. The reversal of 212303121053 is 350121303212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 209656841689 + 2646279364 = 457883^2 + 51442^2 .

It is a cyclic number.

It is not a de Polignac number, because 212303121053 - 2² = 212303121049 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212303121353) 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, 106151560526 + 106151560527.

It is an arithmetic number, because the mean of its divisors is an integer number (106151560527).

Almost surely, 2^212303121053 is an apocalyptic number.

It is an amenable number.

212303121053 is a deficient number, since it is larger than the sum of its proper divisors (1).

212303121053 is an equidigital number, since it uses as much as digits as its factorization.

212303121053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 212303121053 its reverse (350121303212), we get a palindrome (562424424265).

The spelling of 212303121053 in words is "two hundred twelve billion, three hundred three million, one hundred twenty-one thousand, fifty-three".