223210312231 has 4 divisors (see below), whose sum is σ = 223236086832. Its totient is φ = 223184537632.

The previous prime is 223210312223. The next prime is 223210312277. The reversal of 223210312231 is 132213012322.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132213012322 = 2 ⋅66106506161.

It is a cyclic number.

It is not a de Polignac number, because 223210312231 - 2³ = 223210312223 is a prime.

It is a super-3 number, since 3×223210312231³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223210312931) 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, 12874306 + ... + 12891631.

It is an arithmetic number, because the mean of its divisors is an integer number (55809021708).

Almost surely, 2^223210312231 is an apocalyptic number.

223210312231 is a deficient number, since it is larger than the sum of its proper divisors (25774601).

223210312231 is an equidigital number, since it uses as much as digits as its factorization.

223210312231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25774600.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 223210312231 its reverse (132213012322), we get a palindrome (355423324553).

The spelling of 223210312231 in words is "two hundred twenty-three billion, two hundred ten million, three hundred twelve thousand, two hundred thirty-one".