210140100243 has 24 divisors (see below), whose sum is σ = 306379147776. Its totient is φ = 138786102000.

The previous prime is 210140100229. The next prime is 210140100257. The reversal of 210140100243 is 342001041012.

210140100243 is a `hidden beast` number, since 21 + 0 + 1 + 401 + 0 + 0 + 243 = 666.

It is an interprime number because it is at equal distance from previous prime (210140100229) and next prime (210140100257).

It is not a de Polignac number, because 210140100243 - 2¹³ = 210140092051 is a prime.

It is not an unprimeable number, because it can be changed into a prime (210140100223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 288088 + ... + 709418.

It is an arithmetic number, because the mean of its divisors is an integer number (12765797824).

Almost surely, 2^210140100243 is an apocalyptic number.

210140100243 is a deficient number, since it is larger than the sum of its proper divisors (96239047533).

210140100243 is a wasteful number, since it uses less digits than its factorization.

210140100243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421855 (or 421852 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 210140100243 its reverse (342001041012), we get a palindrome (552141141255).

The spelling of 210140100243 in words is "two hundred ten billion, one hundred forty million, one hundred thousand, two hundred forty-three".