1242204003 has 12 divisors (see below), whose sum is σ = 1810757520. Its totient is φ = 820537776.

The previous prime is 1242203971. The next prime is 1242204013. The reversal of 1242204003 is 3004022421.

1242204003 is a `hidden beast` number, since 1 + 242 + 20 + 400 + 3 = 666.

It is not a de Polignac number, because 1242204003 - 2⁵ = 1242203971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1242204013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 632151 + ... + 634112.

It is an arithmetic number, because the mean of its divisors is an integer number (150896460).

Almost surely, 2^1242204003 is an apocalyptic number.

1242204003 is a deficient number, since it is larger than the sum of its proper divisors (568553517).

1242204003 is a wasteful number, since it uses less digits than its factorization.

1242204003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1266378 (or 1266375 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1242204003 is about 35244.9145693389. The cubic root of 1242204003 is about 1074.9732109423.

Adding to 1242204003 its reverse (3004022421), we get a palindrome (4246226424).

The spelling of 1242204003 in words is "one billion, two hundred forty-two million, two hundred four thousand, three".