213011001223 has 2 divisors, whose sum is σ = 213011001224. Its totient is φ = 213011001222.

The previous prime is 213011001209. The next prime is 213011001239. The reversal of 213011001223 is 322100110312.

It is an a-pointer prime, because the next prime (213011001239) can be obtained adding 213011001223 to its sum of digits (16).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213011001223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 213011001197 and 213011001206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213011001253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106505500611 + 106505500612.

It is an arithmetic number, because the mean of its divisors is an integer number (106505500612).

Almost surely, 2^213011001223 is an apocalyptic number.

213011001223 is a deficient number, since it is larger than the sum of its proper divisors (1).

213011001223 is an equidigital number, since it uses as much as digits as its factorization.

213011001223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 213011001223 its reverse (322100110312), we get a palindrome (535111111535).

The spelling of 213011001223 in words is "two hundred thirteen billion, eleven million, one thousand, two hundred twenty-three".