212440304053 has 2 divisors, whose sum is σ = 212440304054. Its totient is φ = 212440304052.

The previous prime is 212440303987. The next prime is 212440304113. The reversal of 212440304053 is 350403044212.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191263651569 + 21176652484 = 437337^2 + 145522^2 .

It is a cyclic number.

It is not a de Polignac number, because 212440304053 - 2⁹ = 212440303541 is a prime.

It is a super-2 number, since 2×212440304053² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212440301053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106220152026 + 106220152027.

It is an arithmetic number, because the mean of its divisors is an integer number (106220152027).

Almost surely, 2^212440304053 is an apocalyptic number.

It is an amenable number.

212440304053 is a deficient number, since it is larger than the sum of its proper divisors (1).

212440304053 is an equidigital number, since it uses as much as digits as its factorization.

212440304053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 28.

Adding to 212440304053 its reverse (350403044212), we get a palindrome (562843348265).

The spelling of 212440304053 in words is "two hundred twelve billion, four hundred forty million, three hundred four thousand, fifty-three".