212232311393 has 2 divisors, whose sum is σ = 212232311394. Its totient is φ = 212232311392.

The previous prime is 212232311341. The next prime is 212232311411. The reversal of 212232311393 is 393113232212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184497739024 + 27734572369 = 429532^2 + 166537^2 .

It is a cyclic number.

It is not a de Polignac number, because 212232311393 - 2¹⁰ = 212232310369 is a prime.

It is not a weakly prime, because it can be changed into another prime (212232311303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106116155696 + 106116155697.

It is an arithmetic number, because the mean of its divisors is an integer number (106116155697).

Almost surely, 2^212232311393 is an apocalyptic number.

It is an amenable number.

212232311393 is a deficient number, since it is larger than the sum of its proper divisors (1).

212232311393 is an equidigital number, since it uses as much as digits as its factorization.

212232311393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The spelling of 212232311393 in words is "two hundred twelve billion, two hundred thirty-two million, three hundred eleven thousand, three hundred ninety-three".