212311432097 has 2 divisors, whose sum is σ = 212311432098. Its totient is φ = 212311432096.

The previous prime is 212311432093. The next prime is 212311432139. The reversal of 212311432097 is 790234113212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110616773281 + 101694658816 = 332591^2 + 318896^2 .

It is a cyclic number.

It is not a de Polignac number, because 212311432097 - 2² = 212311432093 is a prime.

It is a super-2 number, since 2×212311432097² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (212311432093) 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, 106155716048 + 106155716049.

It is an arithmetic number, because the mean of its divisors is an integer number (106155716049).

Almost surely, 2^212311432097 is an apocalyptic number.

It is an amenable number.

212311432097 is a deficient number, since it is larger than the sum of its proper divisors (1).

212311432097 is an equidigital number, since it uses as much as digits as its factorization.

212311432097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 212311432097 in words is "two hundred twelve billion, three hundred eleven million, four hundred thirty-two thousand, ninety-seven".