1223313313231 has 8 divisors (see below), whose sum is σ = 1223896486400. Its totient is φ = 1222730275608.

The previous prime is 1223313313177. The next prime is 1223313313247. The reversal of 1223313313231 is 1323133133221.

It is a happy number.

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 1223313313231 - 2³⁵ = 1188953574863 is a prime.

It is a super-2 number, since 2×1223313313231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223313313231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223313313331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21026620 + ... + 21084718.

It is an arithmetic number, because the mean of its divisors is an integer number (152987060800).

Almost surely, 2^{1223313313231} is an apocalyptic number.

1223313313231 is a deficient number, since it is larger than the sum of its proper divisors (583173169).

1223313313231 is an equidigital number, since it uses as much as digits as its factorization.

1223313313231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67773.

The product of its digits is 5832, while the sum is 28.

Adding to 1223313313231 its reverse (1323133133221), we get a palindrome (2546446446452).

The spelling of 1223313313231 in words is "one trillion, two hundred twenty-three billion, three hundred thirteen million, three hundred thirteen thousand, two hundred thirty-one".