212021077523 has 2 divisors, whose sum is σ = 212021077524. Its totient is φ = 212021077522.

The previous prime is 212021077493. The next prime is 212021077529. The reversal of 212021077523 is 325770120212.

212021077523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212021077523 - 2²⁰ = 212020028947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212021077523.

It is not a weakly prime, because it can be changed into another prime (212021077529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010538761 + 106010538762.

It is an arithmetic number, because the mean of its divisors is an integer number (106010538762).

Almost surely, 2^212021077523 is an apocalyptic number.

212021077523 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021077523 is an equidigital number, since it uses as much as digits as its factorization.

212021077523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 32.

Adding to 212021077523 its reverse (325770120212), we get a palindrome (537791197735).

The spelling of 212021077523 in words is "two hundred twelve billion, twenty-one million, seventy-seven thousand, five hundred twenty-three".