213021329099 has 2 divisors, whose sum is σ = 213021329100. Its totient is φ = 213021329098.

The previous prime is 213021329077. The next prime is 213021329161. The reversal of 213021329099 is 990923120312.

213021329099 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213021329099 - 2¹² = 213021325003 is a prime.

It is a super-2 number, since 2×213021329099² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213021329069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106510664549 + 106510664550.

It is an arithmetic number, because the mean of its divisors is an integer number (106510664550).

Almost surely, 2^213021329099 is an apocalyptic number.

213021329099 is a deficient number, since it is larger than the sum of its proper divisors (1).

213021329099 is an equidigital number, since it uses as much as digits as its factorization.

213021329099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 41.

The spelling of 213021329099 in words is "two hundred thirteen billion, twenty-one million, three hundred twenty-nine thousand, ninety-nine".