210402312343 has 4 divisors (see below), whose sum is σ = 210600245968. Its totient is φ = 210204378720.

The previous prime is 210402312313. The next prime is 210402312409. The reversal of 210402312343 is 343213204012.

210402312343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 210402312343 - 2³³ = 201812377751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210402312313) 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 in 3 ways as a sum of consecutive naturals, for example, 98965218 + ... + 98967343.

It is an arithmetic number, because the mean of its divisors is an integer number (52650061492).

Almost surely, 2^210402312343 is an apocalyptic number.

210402312343 is a deficient number, since it is larger than the sum of its proper divisors (197933625).

210402312343 is a wasteful number, since it uses less digits than its factorization.

210402312343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197933624.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 210402312343 its reverse (343213204012), we get a palindrome (553615516355).

The spelling of 210402312343 in words is "two hundred ten billion, four hundred two million, three hundred twelve thousand, three hundred forty-three".