223312031231 has 8 divisors (see below), whose sum is σ = 227012491104. Its totient is φ = 219612849120.

The previous prime is 223312031221. The next prime is 223312031287. The reversal of 223312031231 is 132130213322.

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

It is a cyclic number.

It is not a de Polignac number, because 223312031231 - 2¹⁴ = 223312014847 is a prime.

It is a super-2 number, since 2×223312031231² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223312031197 and 223312031206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223312031221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36245 + ... + 669281.

It is an arithmetic number, because the mean of its divisors is an integer number (28376561388).

Almost surely, 2^223312031231 is an apocalyptic number.

223312031231 is a deficient number, since it is larger than the sum of its proper divisors (3700459873).

223312031231 is an equidigital number, since it uses as much as digits as its factorization.

223312031231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638881.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 223312031231 its reverse (132130213322), we get a palindrome (355442244553).

The spelling of 223312031231 in words is "two hundred twenty-three billion, three hundred twelve million, thirty-one thousand, two hundred thirty-one".