1226231603 has 2 divisors, whose sum is σ = 1226231604. Its totient is φ = 1226231602.

The previous prime is 1226231599. The next prime is 1226231659. The reversal of 1226231603 is 3061326221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1226231603 - 2² = 1226231599 is a prime.

It is not a weakly prime, because it can be changed into another prime (1226231693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 613115801 + 613115802.

It is an arithmetic number, because the mean of its divisors is an integer number (613115802).

Almost surely, 2^1226231603 is an apocalyptic number.

1226231603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1226231603 is an equidigital number, since it uses as much as digits as its factorization.

1226231603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1226231603 is about 35017.5899085017. The cubic root of 1226231603 is about 1070.3459454367.

Adding to 1226231603 its reverse (3061326221), we get a palindrome (4287557824).

The spelling of 1226231603 in words is "one billion, two hundred twenty-six million, two hundred thirty-one thousand, six hundred three".