213122012203 has 2 divisors, whose sum is σ = 213122012204. Its totient is φ = 213122012202.

The previous prime is 213122012197. The next prime is 213122012231. The reversal of 213122012203 is 302210221312.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213122012203 is a prime.

It is not a weakly prime, because it can be changed into another prime (213122012503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106561006101 + 106561006102.

It is an arithmetic number, because the mean of its divisors is an integer number (106561006102).

Almost surely, 2^213122012203 is an apocalyptic number.

213122012203 is a deficient number, since it is larger than the sum of its proper divisors (1).

213122012203 is an equidigital number, since it uses as much as digits as its factorization.

213122012203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 213122012203 its reverse (302210221312), we get a palindrome (515332233515).

The spelling of 213122012203 in words is "two hundred thirteen billion, one hundred twenty-two million, twelve thousand, two hundred three".