1224423131 has 2 divisors, whose sum is σ = 1224423132. Its totient is φ = 1224423130.

The previous prime is 1224423127. The next prime is 1224423157. The reversal of 1224423131 is 1313244221.

It is a weak prime.

It is an emirp because it is prime and its reverse (1313244221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1224423131 - 2² = 1224423127 is a prime.

It is a super-2 number, since 2×1224423131² = 2998424007455686322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1224423097 and 1224423106.

It is not a weakly prime, because it can be changed into another prime (1224423121) 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, 612211565 + 612211566.

It is an arithmetic number, because the mean of its divisors is an integer number (612211566).

Almost surely, 2^1224423131 is an apocalyptic number.

1224423131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224423131 is an equidigital number, since it uses as much as digits as its factorization.

1224423131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 1224423131 is about 34991.7580438594. The cubic root of 1224423131 is about 1069.8194970215.

Adding to 1224423131 its reverse (1313244221), we get a palindrome (2537667352).

The spelling of 1224423131 in words is "one billion, two hundred twenty-four million, four hundred twenty-three thousand, one hundred thirty-one".