212316238097 has 2 divisors, whose sum is σ = 212316238098. Its totient is φ = 212316238096.

The previous prime is 212316238039. The next prime is 212316238103. The reversal of 212316238097 is 790832613212.

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., 133485006736 + 78831231361 = 365356^2 + 280769^2 .

It is a cyclic number.

It is not a de Polignac number, because 212316238097 - 2¹⁰ = 212316237073 is a prime.

It is not a weakly prime, because it can be changed into another prime (212316238027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106158119048 + 106158119049.

It is an arithmetic number, because the mean of its divisors is an integer number (106158119049).

Almost surely, 2^212316238097 is an apocalyptic number.

It is an amenable number.

212316238097 is a deficient number, since it is larger than the sum of its proper divisors (1).

212316238097 is an equidigital number, since it uses as much as digits as its factorization.

212316238097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The spelling of 212316238097 in words is "two hundred twelve billion, three hundred sixteen million, two hundred thirty-eight thousand, ninety-seven".