1223504011 has 2 divisors, whose sum is σ = 1223504012. Its totient is φ = 1223504010.

The previous prime is 1223503979. The next prime is 1223504039. The reversal of 1223504011 is 1104053221.

It is a strong prime.

It is an emirp because it is prime and its reverse (1104053221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1223504011 - 2⁵ = 1223503979 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1223504011.

It is not a weakly prime, because it can be changed into another prime (1223004011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611752005 + 611752006.

It is an arithmetic number, because the mean of its divisors is an integer number (611752006).

Almost surely, 2^1223504011 is an apocalyptic number.

1223504011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223504011 is an equidigital number, since it uses as much as digits as its factorization.

1223504011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1223504011 is about 34978.6221998523. The cubic root of 1223504011 is about 1069.5517413708.

Adding to 1223504011 its reverse (1104053221), we get a palindrome (2327557232).

The spelling of 1223504011 in words is "one billion, two hundred twenty-three million, five hundred four thousand, eleven".