213414125001643 has 2 divisors, whose sum is σ = 213414125001644. Its totient is φ = 213414125001642.

The previous prime is 213414125001617. The next prime is 213414125001673. The reversal of 213414125001643 is 346100521414312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213414125001643 - 2⁹ = 213414125001131 is a prime.

It is not a weakly prime, because it can be changed into another prime (213414125001673) 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, 106707062500821 + 106707062500822.

It is an arithmetic number, because the mean of its divisors is an integer number (106707062500822).

Almost surely, 2^{213414125001643} is an apocalyptic number.

213414125001643 is a deficient number, since it is larger than the sum of its proper divisors (1).

213414125001643 is an equidigital number, since it uses as much as digits as its factorization.

213414125001643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 213414125001643 its reverse (346100521414312), we get a palindrome (559514646415955).

The spelling of 213414125001643 in words is "two hundred thirteen trillion, four hundred fourteen billion, one hundred twenty-five million, one thousand, six hundred forty-three".