12103204402 has 12 divisors (see below), whose sum is σ = 19160614206. Its totient is φ = 5733096480.

The previous prime is 12103204397. The next prime is 12103204423. The reversal of 12103204402 is 20440230121.

It can be written as a sum of positive squares in only one way, i.e., 7602270481 + 4500933921 = 87191^2 + 67089^2 .

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 12103204402.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8380999 + ... + 8382442.

Almost surely, 2^12103204402 is an apocalyptic number.

12103204402 is a deficient number, since it is larger than the sum of its proper divisors (7057409804).

12103204402 is a wasteful number, since it uses less digits than its factorization.

12103204402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16763481 (or 16763462 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12103204402 its reverse (20440230121), we get a palindrome (32543434523).

The spelling of 12103204402 in words is "twelve billion, one hundred three million, two hundred four thousand, four hundred two".