213112110361 has 2 divisors, whose sum is σ = 213112110362. Its totient is φ = 213112110360.

The previous prime is 213112110247. The next prime is 213112110377. The reversal of 213112110361 is 163011211312.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 150621610000 + 62490500361 = 388100^2 + 249981^2 .

It is a cyclic number.

It is not a de Polignac number, because 213112110361 - 2⁹ = 213112109849 is a prime.

It is not a weakly prime, because it can be changed into another prime (213112116361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106556055180 + 106556055181.

It is an arithmetic number, because the mean of its divisors is an integer number (106556055181).

Almost surely, 2^213112110361 is an apocalyptic number.

It is an amenable number.

213112110361 is a deficient number, since it is larger than the sum of its proper divisors (1).

213112110361 is an equidigital number, since it uses as much as digits as its factorization.

213112110361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 213112110361 its reverse (163011211312), we get a palindrome (376123321673).

The spelling of 213112110361 in words is "two hundred thirteen billion, one hundred twelve million, one hundred ten thousand, three hundred sixty-one".