216303423 has 16 divisors (see below), whose sum is σ = 331792896. Its totient is φ = 122781600.

The previous prime is 216303419. The next prime is 216303433. The reversal of 216303423 is 324303612.

It is not a de Polignac number, because 216303423 - 2² = 216303419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 216303393 and 216303402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216303433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30936 + ... + 37277.

It is an arithmetic number, because the mean of its divisors is an integer number (20737056).

Almost surely, 2^216303423 is an apocalyptic number.

216303423 is a deficient number, since it is larger than the sum of its proper divisors (115489473).

216303423 is a wasteful number, since it uses less digits than its factorization.

216303423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68374.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 216303423 is about 14707.2574941761. The cubic root of 216303423 is about 600.2808157726.

The spelling of 216303423 in words is "two hundred sixteen million, three hundred three thousand, four hundred twenty-three".