1223431223 has 16 divisors (see below), whose sum is σ = 1473937920. Its totient is φ = 992018016.

The previous prime is 1223431217. The next prime is 1223431229. The reversal of 1223431223 is 3221343221.

It is an interprime number because it is at equal distance from previous prime (1223431217) and next prime (1223431229).

It is a cyclic number.

It is not a de Polignac number, because 1223431223 - 2¹⁴ = 1223414839 is a prime.

It is a super-2 number, since 2×1223431223² = 2993567914822551458, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223431229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90365 + ... + 103017.

It is an arithmetic number, because the mean of its divisors is an integer number (92121120).

Almost surely, 2^1223431223 is an apocalyptic number.

1223431223 is a deficient number, since it is larger than the sum of its proper divisors (250506697).

1223431223 is a wasteful number, since it uses less digits than its factorization.

1223431223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13406.

The product of its digits is 1728, while the sum is 23.

The square root of 1223431223 is about 34977.5817202962. The cubic root of 1223431223 is about 1069.5305312302.

Adding to 1223431223 its reverse (3221343221), we get a palindrome (4444774444).

The spelling of 1223431223 in words is "one billion, two hundred twenty-three million, four hundred thirty-one thousand, two hundred twenty-three".