210842523923 has 16 divisors (see below), whose sum is σ = 214516242432. Its totient is φ = 207189444000.

The previous prime is 210842523907. The next prime is 210842523967. The reversal of 210842523923 is 329325248012.

It is a cyclic number.

It is not a de Polignac number, because 210842523923 - 2⁴ = 210842523907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (210842523223) 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 in 15 ways as a sum of consecutive naturals, for example, 33888953 + ... + 33895173.

It is an arithmetic number, because the mean of its divisors is an integer number (13407265152).

Almost surely, 2^210842523923 is an apocalyptic number.

210842523923 is a deficient number, since it is larger than the sum of its proper divisors (3673718509).

210842523923 is a wasteful number, since it uses less digits than its factorization.

210842523923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7786.

The product of its (nonzero) digits is 207360, while the sum is 41.

The spelling of 210842523923 in words is "two hundred ten billion, eight hundred forty-two million, five hundred twenty-three thousand, nine hundred twenty-three".