212120209162523 has 2 divisors, whose sum is σ = 212120209162524. Its totient is φ = 212120209162522.

The previous prime is 212120209162493. The next prime is 212120209162573. The reversal of 212120209162523 is 325261902021212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212120209162523 - 2¹⁰ = 212120209161499 is a prime.

It is not a weakly prime, because it can be changed into another prime (212120209162573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060104581261 + 106060104581262.

It is an arithmetic number, because the mean of its divisors is an integer number (106060104581262).

Almost surely, 2^{212120209162523} is an apocalyptic number.

212120209162523 is a deficient number, since it is larger than the sum of its proper divisors (1).

212120209162523 is an equidigital number, since it uses as much as digits as its factorization.

212120209162523 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 38.

The spelling of 212120209162523 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred nine million, one hundred sixty-two thousand, five hundred twenty-three".