211403004352469 has 2 divisors, whose sum is σ = 211403004352470. Its totient is φ = 211403004352468.

The previous prime is 211403004352427. The next prime is 211403004352489. The reversal of 211403004352469 is 964253400304112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 179498016949969 + 31904987402500 = 13397687^2 + 5648450^2 .

It is a cyclic number.

It is not a de Polignac number, because 211403004352469 - 2³⁶ = 211334284875733 is a prime.

It is a super-2 number, since 2×211403004352469² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211403004352489) 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, 105701502176234 + 105701502176235.

It is an arithmetic number, because the mean of its divisors is an integer number (105701502176235).

Almost surely, 2^{211403004352469} is an apocalyptic number.

It is an amenable number.

211403004352469 is a deficient number, since it is larger than the sum of its proper divisors (1).

211403004352469 is an equidigital number, since it uses as much as digits as its factorization.

211403004352469 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 622080, while the sum is 44.

The spelling of 211403004352469 in words is "two hundred eleven trillion, four hundred three billion, four million, three hundred fifty-two thousand, four hundred sixty-nine".