213112110247 has 2 divisors, whose sum is σ = 213112110248. Its totient is φ = 213112110246.

The previous prime is 213112110223. The next prime is 213112110361. The reversal of 213112110247 is 742011211312.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 213112110247 - 2³⁵ = 178752371879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213112110847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106556055123 + 106556055124.

It is an arithmetic number, because the mean of its divisors is an integer number (106556055124).

Almost surely, 2^213112110247 is an apocalyptic number.

213112110247 is a deficient number, since it is larger than the sum of its proper divisors (1).

213112110247 is an equidigital number, since it uses as much as digits as its factorization.

213112110247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 25.

Adding to 213112110247 its reverse (742011211312), we get a palindrome (955123321559).

The spelling of 213112110247 in words is "two hundred thirteen billion, one hundred twelve million, one hundred ten thousand, two hundred forty-seven".