1223143331 has 8 divisors (see below), whose sum is σ = 1229889024. Its totient is φ = 1216413000.

The previous prime is 1223143309. The next prime is 1223143343. The reversal of 1223143331 is 1333413221.

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 1223143331 - 2⁶ = 1223143267 is a prime.

It is a super-2 number, since 2×1223143331² = 2992159216339551122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1223143297 and 1223143306.

It is not an unprimeable number, because it can be changed into a prime (1223142331) 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, 179126 + ... + 185828.

It is an arithmetic number, because the mean of its divisors is an integer number (153736128).

Almost surely, 2^1223143331 is an apocalyptic number.

1223143331 is a deficient number, since it is larger than the sum of its proper divisors (6745693).

1223143331 is an equidigital number, since it uses as much as digits as its factorization.

1223143331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7681.

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

The square root of 1223143331 is about 34973.4660993159. The cubic root of 1223143331 is about 1069.4466323746.

Adding to 1223143331 its reverse (1333413221), we get a palindrome (2556556552).

The spelling of 1223143331 in words is "one billion, two hundred twenty-three million, one hundred forty-three thousand, three hundred thirty-one".