213012121967 has 2 divisors, whose sum is σ = 213012121968. Its totient is φ = 213012121966.

The previous prime is 213012121921. The next prime is 213012122009. The reversal of 213012121967 is 769121210312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213012121967 - 2⁸ = 213012121711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213012121367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106506060983 + 106506060984.

It is an arithmetic number, because the mean of its divisors is an integer number (106506060984).

Almost surely, 2^213012121967 is an apocalyptic number.

213012121967 is a deficient number, since it is larger than the sum of its proper divisors (1).

213012121967 is an equidigital number, since it uses as much as digits as its factorization.

213012121967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The spelling of 213012121967 in words is "two hundred thirteen billion, twelve million, one hundred twenty-one thousand, nine hundred sixty-seven".