210993923603 has 2 divisors, whose sum is σ = 210993923604. Its totient is φ = 210993923602.

The previous prime is 210993923531. The next prime is 210993923617. The reversal of 210993923603 is 306329399012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210993923603 is a prime.

It is not a weakly prime, because it can be changed into another prime (210993923663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105496961801 + 105496961802.

It is an arithmetic number, because the mean of its divisors is an integer number (105496961802).

Almost surely, 2^210993923603 is an apocalyptic number.

210993923603 is a deficient number, since it is larger than the sum of its proper divisors (1).

210993923603 is an equidigital number, since it uses as much as digits as its factorization.

210993923603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 472392, while the sum is 47.

The spelling of 210993923603 in words is "two hundred ten billion, nine hundred ninety-three million, nine hundred twenty-three thousand, six hundred three".