1223140403 has 2 divisors, whose sum is σ = 1223140404. Its totient is φ = 1223140402.

The previous prime is 1223140393. The next prime is 1223140417. The reversal of 1223140403 is 3040413221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1223140403 - 2⁸ = 1223140147 is a prime.

It is not a weakly prime, because it can be changed into another prime (1223140493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611570201 + 611570202.

It is an arithmetic number, because the mean of its divisors is an integer number (611570202).

Almost surely, 2^1223140403 is an apocalyptic number.

1223140403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223140403 is an equidigital number, since it uses as much as digits as its factorization.

1223140403 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 1223140403 is about 34973.4242389847. The cubic root of 1223140403 is about 1069.4457790153.

Adding to 1223140403 its reverse (3040413221), we get a palindrome (4263553624).

The spelling of 1223140403 in words is "one billion, two hundred twenty-three million, one hundred forty thousand, four hundred three".