1223504001 has 64 divisors (see below), whose sum is σ = 1941166080. Its totient is φ = 760320000.

The previous prime is 1223503979. The next prime is 1223504011. The reversal of 1223504001 is 1004053221.

It is not a de Polignac number, because 1223504001 - 2⁷ = 1223503873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223504011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3465841 + ... + 3466193.

It is an arithmetic number, because the mean of its divisors is an integer number (30330720).

Almost surely, 2^1223504001 is an apocalyptic number.

It is an amenable number.

1223504001 is a deficient number, since it is larger than the sum of its proper divisors (717662079).

1223504001 is a wasteful number, since it uses less digits than its factorization.

1223504001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 535 (or 529 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1223504001 is about 34978.6220569078. The cubic root of 1223504001 is about 1069.5517384569.

Adding to 1223504001 its reverse (1004053221), we get a palindrome (2227557222).

The spelling of 1223504001 in words is "one billion, two hundred twenty-three million, five hundred four thousand, one".