1223233331 has 2 divisors, whose sum is σ = 1223233332. Its totient is φ = 1223233330.

The previous prime is 1223233303. The next prime is 1223233343. The reversal of 1223233331 is 1333323221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1223233331 - 2⁶ = 1223233267 is a prime.

It is a super-2 number, since 2×1223233331² = 2992599564138711122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223233297 and 1223233306.

It is not a weakly prime, because it can be changed into another prime (1223233301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611616665 + 611616666.

It is an arithmetic number, because the mean of its divisors is an integer number (611616666).

Almost surely, 2^1223233331 is an apocalyptic number.

1223233331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223233331 is an equidigital number, since it uses as much as digits as its factorization.

1223233331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 23.

The square root of 1223233331 is about 34974.7527653878. The cubic root of 1223233331 is about 1069.4728620169.

Adding to 1223233331 its reverse (1333323221), we get a palindrome (2556556552).

The spelling of 1223233331 in words is "one billion, two hundred twenty-three million, two hundred thirty-three thousand, three hundred thirty-one".