231453223 has 4 divisors (see below), whose sum is σ = 238919488. Its totient is φ = 223986960.

The previous prime is 231453221. The next prime is 231453247. The reversal of 231453223 is 322354132.

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 231453223 - 2¹ = 231453221 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 (231453221) 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, 3733086 + ... + 3733147.

It is an arithmetic number, because the mean of its divisors is an integer number (59729872).

Almost surely, 2^231453223 is an apocalyptic number.

231453223 is a deficient number, since it is larger than the sum of its proper divisors (7466265).

231453223 is an equidigital number, since it uses as much as digits as its factorization.

231453223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7466264.

The product of its digits is 4320, while the sum is 25.

The square root of 231453223 is about 15213.5867894458. The cubic root of 231453223 is about 613.9802635240.

Subtracting 231453223 from its reverse (322354132), we obtain a palindrome (90900909).

The spelling of 231453223 in words is "two hundred thirty-one million, four hundred fifty-three thousand, two hundred twenty-three".