212454025403 has 2 divisors, whose sum is σ = 212454025404. Its totient is φ = 212454025402.

The previous prime is 212454025393. The next prime is 212454025417. The reversal of 212454025403 is 304520454212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212454025403 - 2¹⁶ = 212453959867 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212454025403.

It is not a weakly prime, because it can be changed into another prime (212454025453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106227012701 + 106227012702.

It is an arithmetic number, because the mean of its divisors is an integer number (106227012702).

Almost surely, 2^212454025403 is an apocalyptic number.

212454025403 is a deficient number, since it is larger than the sum of its proper divisors (1).

212454025403 is an equidigital number, since it uses as much as digits as its factorization.

212454025403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 212454025403 its reverse (304520454212), we get a palindrome (516974479615).

The spelling of 212454025403 in words is "two hundred twelve billion, four hundred fifty-four million, twenty-five thousand, four hundred three".