216311342 has 16 divisors (see below), whose sum is σ = 350203392. Its totient is φ = 99613920.

The previous prime is 216311323. The next prime is 216311351. The reversal of 216311342 is 243113612.

216311342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2963 + ... + 21009.

It is an arithmetic number, because the mean of its divisors is an integer number (21887712).

Almost surely, 2^216311342 is an apocalyptic number.

216311342 is a deficient number, since it is larger than the sum of its proper divisors (133892050).

216311342 is a wasteful number, since it uses less digits than its factorization.

216311342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18523.

The product of its digits is 864, while the sum is 23.

The square root of 216311342 is about 14707.5267125374. The cubic root of 216311342 is about 600.2881412319.

Adding to 216311342 its reverse (243113612), we get a palindrome (459424954).

The spelling of 216311342 in words is "two hundred sixteen million, three hundred eleven thousand, three hundred forty-two".