218290230143 has 4 divisors (see below), whose sum is σ = 221868758568. Its totient is φ = 214711701720.

The previous prime is 218290230091. The next prime is 218290230161. The reversal of 218290230143 is 341032092812.

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 218290230143 - 2⁸ = 218290229887 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 (218290233143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1789264121 + ... + 1789264242.

It is an arithmetic number, because the mean of its divisors is an integer number (55467189642).

Almost surely, 2^218290230143 is an apocalyptic number.

218290230143 is a deficient number, since it is larger than the sum of its proper divisors (3578528425).

218290230143 is an equidigital number, since it uses as much as digits as its factorization.

218290230143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3578528424.

The product of its (nonzero) digits is 20736, while the sum is 35.

The spelling of 218290230143 in words is "two hundred eighteen billion, two hundred ninety million, two hundred thirty thousand, one hundred forty-three".