213000322091 has 2 divisors, whose sum is σ = 213000322092. Its totient is φ = 213000322090.

The previous prime is 213000322079. The next prime is 213000322163. The reversal of 213000322091 is 190223000312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213000322091 is a prime.

It is a super-2 number, since 2×213000322091² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213000322021) 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, 106500161045 + 106500161046.

It is an arithmetic number, because the mean of its divisors is an integer number (106500161046).

Almost surely, 2^213000322091 is an apocalyptic number.

213000322091 is a deficient number, since it is larger than the sum of its proper divisors (1).

213000322091 is an equidigital number, since it uses as much as digits as its factorization.

213000322091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

The spelling of 213000322091 in words is "two hundred thirteen billion, three hundred twenty-two thousand, ninety-one".