11213211329609 has 2 divisors, whose sum is σ = 11213211329610. Its totient is φ = 11213211329608.

The previous prime is 11213211329603. The next prime is 11213211329641. The reversal of 11213211329609 is 90692311231211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11017440478009 + 195770851600 = 3319253^2 + 442460^2 .

It is a cyclic number.

It is not a de Polignac number, because 11213211329609 - 2³⁶ = 11144491852873 is a prime.

It is a super-2 number, since 2×11213211329609² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11213211329603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606605664804 + 5606605664805.

It is an arithmetic number, because the mean of its divisors is an integer number (5606605664805).

Almost surely, 2^{11213211329609} is an apocalyptic number.

It is an amenable number.

11213211329609 is a deficient number, since it is larger than the sum of its proper divisors (1).

11213211329609 is an equidigital number, since it uses as much as digits as its factorization.

11213211329609 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 41.

The spelling of 11213211329609 in words is "eleven trillion, two hundred thirteen billion, two hundred eleven million, three hundred twenty-nine thousand, six hundred nine".