30231223 has 24 divisors (see below), whose sum is σ = 36429696. Its totient is φ = 24829200.

The previous prime is 30231209. The next prime is 30231239. The reversal of 30231223 is 32213203.

It is not a de Polignac number, because 30231223 - 2⁵ = 30231191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30231197 and 30231206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30231203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91168 + ... + 91498.

It is an arithmetic number, because the mean of its divisors is an integer number (1517904).

Almost surely, 2^30231223 is an apocalyptic number.

30231223 is a deficient number, since it is larger than the sum of its proper divisors (6198473).

30231223 is a wasteful number, since it uses less digits than its factorization.

30231223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 30231223 is about 5498.2927350224. The cubic root of 30231223 is about 311.5195013156.

Adding to 30231223 its reverse (32213203), we get a palindrome (62444426).

The spelling of 30231223 in words is "thirty million, two hundred thirty-one thousand, two hundred twenty-three".