213213023251 has 2 divisors, whose sum is σ = 213213023252. Its totient is φ = 213213023250.

The previous prime is 213213023201. The next prime is 213213023269. The reversal of 213213023251 is 152320312312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213213023251 - 2⁷ = 213213023123 is a prime.

It is not a weakly prime, because it can be changed into another prime (213213023201) 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, 106606511625 + 106606511626.

It is an arithmetic number, because the mean of its divisors is an integer number (106606511626).

Almost surely, 2^213213023251 is an apocalyptic number.

213213023251 is a deficient number, since it is larger than the sum of its proper divisors (1).

213213023251 is an equidigital number, since it uses as much as digits as its factorization.

213213023251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 213213023251 its reverse (152320312312), we get a palindrome (365533335563).

The spelling of 213213023251 in words is "two hundred thirteen billion, two hundred thirteen million, twenty-three thousand, two hundred fifty-one".