213112320203 has 2 divisors, whose sum is σ = 213112320204. Its totient is φ = 213112320202.

The previous prime is 213112320199. The next prime is 213112320241. The reversal of 213112320203 is 302023211312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213112320203 - 2² = 213112320199 is a prime.

It is a super-2 number, since 2×213112320203² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213112350203) 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, 106556160101 + 106556160102.

It is an arithmetic number, because the mean of its divisors is an integer number (106556160102).

Almost surely, 2^213112320203 is an apocalyptic number.

213112320203 is a deficient number, since it is larger than the sum of its proper divisors (1).

213112320203 is an equidigital number, since it uses as much as digits as its factorization.

213112320203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213112320203 its reverse (302023211312), we get a palindrome (515135531515).

The spelling of 213112320203 in words is "two hundred thirteen billion, one hundred twelve million, three hundred twenty thousand, two hundred three".