213013322229509 has 2 divisors, whose sum is σ = 213013322229510. Its totient is φ = 213013322229508.

The previous prime is 213013322229457. The next prime is 213013322229541. The reversal of 213013322229509 is 905922223310312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211440041196484 + 1573281033025 = 14540978^2 + 1254305^2 .

It is a cyclic number.

It is not a de Polignac number, because 213013322229509 - 2¹² = 213013322225413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213013322229509.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213013322229559) 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, 106506661114754 + 106506661114755.

It is an arithmetic number, because the mean of its divisors is an integer number (106506661114755).

Almost surely, 2^{213013322229509} is an apocalyptic number.

It is an amenable number.

213013322229509 is a deficient number, since it is larger than the sum of its proper divisors (1).

213013322229509 is an equidigital number, since it uses as much as digits as its factorization.

213013322229509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 44.

The spelling of 213013322229509 in words is "two hundred thirteen trillion, thirteen billion, three hundred twenty-two million, two hundred twenty-nine thousand, five hundred nine".