1223022431 has 2 divisors, whose sum is σ = 1223022432. Its totient is φ = 1223022430.

The previous prime is 1223022421. The next prime is 1223022443. The reversal of 1223022431 is 1342203221.

It is a weak prime.

It is an emirp because it is prime and its reverse (1342203221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223022431 - 2¹⁰ = 1223021407 is a prime.

It is a super-2 number, since 2×1223022431² = 2991567733458299522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223022421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611511215 + 611511216.

It is an arithmetic number, because the mean of its divisors is an integer number (611511216).

Almost surely, 2^1223022431 is an apocalyptic number.

1223022431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223022431 is an equidigital number, since it uses as much as digits as its factorization.

1223022431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1223022431 is about 34971.7376033848. The cubic root of 1223022431 is about 1069.4113951965.

Adding to 1223022431 its reverse (1342203221), we get a palindrome (2565225652).

The spelling of 1223022431 in words is "one billion, two hundred twenty-three million, twenty-two thousand, four hundred thirty-one".