213006137899 has 2 divisors, whose sum is σ = 213006137900. Its totient is φ = 213006137898.

The previous prime is 213006137891. The next prime is 213006137917. The reversal of 213006137899 is 998731600312.

213006137899 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 213006137899 - 2³ = 213006137891 is a prime.

It is a super-2 number, since 2×213006137899² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213006137891) 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, 106503068949 + 106503068950.

It is an arithmetic number, because the mean of its divisors is an integer number (106503068950).

Almost surely, 2^213006137899 is an apocalyptic number.

213006137899 is a deficient number, since it is larger than the sum of its proper divisors (1).

213006137899 is an equidigital number, since it uses as much as digits as its factorization.

213006137899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 49.

The spelling of 213006137899 in words is "two hundred thirteen billion, six million, one hundred thirty-seven thousand, eight hundred ninety-nine".