1220104003 has 4 divisors (see below), whose sum is σ = 1220229208. Its totient is φ = 1219978800.

The previous prime is 1220103947. The next prime is 1220104007. The reversal of 1220104003 is 3004010221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1220104003 - 2²⁵ = 1186549571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1220104007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46626 + ... + 67927.

It is an arithmetic number, because the mean of its divisors is an integer number (305057302).

Almost surely, 2^1220104003 is an apocalyptic number.

1220104003 is a deficient number, since it is larger than the sum of its proper divisors (125205).

1220104003 is a wasteful number, since it uses less digits than its factorization.

1220104003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125204.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1220104003 is about 34929.9871600320. The cubic root of 1220104003 is about 1068.5600927554.

Adding to 1220104003 its reverse (3004010221), we get a palindrome (4224114224).

The spelling of 1220104003 in words is "one billion, two hundred twenty million, one hundred four thousand, three".