405212215322351 has 2 divisors, whose sum is σ = 405212215322352. Its totient is φ = 405212215322350.

The previous prime is 405212215322309. The next prime is 405212215322381. The reversal of 405212215322351 is 153223512212504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 405212215322351 - 2²² = 405212211128047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405212215322381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202606107661175 + 202606107661176.

It is an arithmetic number, because the mean of its divisors is an integer number (202606107661176).

Almost surely, 2^{405212215322351} is an apocalyptic number.

405212215322351 is a deficient number, since it is larger than the sum of its proper divisors (1).

405212215322351 is an equidigital number, since it uses as much as digits as its factorization.

405212215322351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 38.

Adding to 405212215322351 its reverse (153223512212504), we get a palindrome (558435727534855).

The spelling of 405212215322351 in words is "four hundred five trillion, two hundred twelve billion, two hundred fifteen million, three hundred twenty-two thousand, three hundred fifty-one".