210012012343 has 4 divisors (see below), whose sum is σ = 240013728400. Its totient is φ = 180010296288.

The previous prime is 210012012319. The next prime is 210012012377. The reversal of 210012012343 is 343210210012.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 210012012343 - 2³³ = 201422077751 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 210012012343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210012412343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15000858018 + ... + 15000858031.

It is an arithmetic number, because the mean of its divisors is an integer number (60003432100).

Almost surely, 2^210012012343 is an apocalyptic number.

210012012343 is a deficient number, since it is larger than the sum of its proper divisors (30001716057).

210012012343 is an equidigital number, since it uses as much as digits as its factorization.

210012012343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30001716056.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 210012012343 its reverse (343210210012), we get a palindrome (553222222355).

The spelling of 210012012343 in words is "two hundred ten billion, twelve million, twelve thousand, three hundred forty-three".