213502344269 has 2 divisors, whose sum is σ = 213502344270. Its totient is φ = 213502344268.

The previous prime is 213502344221. The next prime is 213502344389. The reversal of 213502344269 is 962443205312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181464924169 + 32037420100 = 425987^2 + 178990^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213502344269 is a prime.

It is a super-2 number, since 2×213502344269² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213502344469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106751172134 + 106751172135.

It is an arithmetic number, because the mean of its divisors is an integer number (106751172135).

Almost surely, 2^213502344269 is an apocalyptic number.

It is an amenable number.

213502344269 is a deficient number, since it is larger than the sum of its proper divisors (1).

213502344269 is an equidigital number, since it uses as much as digits as its factorization.

213502344269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 41.

The spelling of 213502344269 in words is "two hundred thirteen billion, five hundred two million, three hundred forty-four thousand, two hundred sixty-nine".