213112019999 has 2 divisors, whose sum is σ = 213112020000. Its totient is φ = 213112019998.

The previous prime is 213112019993. The next prime is 213112020007. The reversal of 213112019999 is 999910211312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213112019999 - 2²⁸ = 212843584543 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213112019993) 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, 106556009999 + 106556010000.

It is an arithmetic number, because the mean of its divisors is an integer number (106556010000).

Almost surely, 2^213112019999 is an apocalyptic number.

213112019999 is a deficient number, since it is larger than the sum of its proper divisors (1).

213112019999 is an equidigital number, since it uses as much as digits as its factorization.

213112019999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78732, while the sum is 47.

The spelling of 213112019999 in words is "two hundred thirteen billion, one hundred twelve million, nineteen thousand, nine hundred ninety-nine".