212432042453 has 2 divisors, whose sum is σ = 212432042454. Its totient is φ = 212432042452.

The previous prime is 212432042429. The next prime is 212432042519. The reversal of 212432042453 is 354240234212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 166906565764 + 45525476689 = 408542^2 + 213367^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212432042453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212432042423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106216021226 + 106216021227.

It is an arithmetic number, because the mean of its divisors is an integer number (106216021227).

Almost surely, 2^212432042453 is an apocalyptic number.

It is an amenable number.

212432042453 is a deficient number, since it is larger than the sum of its proper divisors (1).

212432042453 is an equidigital number, since it uses as much as digits as its factorization.

212432042453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 212432042453 its reverse (354240234212), we get a palindrome (566672276665).

The spelling of 212432042453 in words is "two hundred twelve billion, four hundred thirty-two million, forty-two thousand, four hundred fifty-three".