213021023301967 has 2 divisors, whose sum is σ = 213021023301968. Its totient is φ = 213021023301966.

The previous prime is 213021023301899. The next prime is 213021023301971. The reversal of 213021023301967 is 769103320120312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213021023301967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (213021023301467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106510511650983 + 106510511650984.

It is an arithmetic number, because the mean of its divisors is an integer number (106510511650984).

Almost surely, 2^{213021023301967} is an apocalyptic number.

213021023301967 is a deficient number, since it is larger than the sum of its proper divisors (1).

213021023301967 is an equidigital number, since it uses as much as digits as its factorization.

213021023301967 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 81648, while the sum is 40.

The spelling of 213021023301967 in words is "two hundred thirteen trillion, twenty-one billion, twenty-three million, three hundred one thousand, nine hundred sixty-seven".