216231423 has 8 divisors (see below), whose sum is σ = 292369536. Its totient is φ = 142123800.

The previous prime is 216231413. The next prime is 216231437. The reversal of 216231423 is 324132612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 216231423 - 2⁶ = 216231359 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216231393 and 216231402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216231403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 507373 + ... + 507798.

It is an arithmetic number, because the mean of its divisors is an integer number (36546192).

Almost surely, 2^216231423 is an apocalyptic number.

216231423 is a deficient number, since it is larger than the sum of its proper divisors (76138113).

216231423 is a wasteful number, since it uses less digits than its factorization.

216231423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015245.

The product of its digits is 1728, while the sum is 24.

The square root of 216231423 is about 14704.8095193375. The cubic root of 216231423 is about 600.2142040741.

The spelling of 216231423 in words is "two hundred sixteen million, two hundred thirty-one thousand, four hundred twenty-three".