1123203200004 has 18 divisors (see below), whose sum is σ = 2839208088990. Its totient is φ = 374401066656.

The previous prime is 1123203199969. The next prime is 1123203200017. The reversal of 1123203200004 is 4000023023211.

It can be written as a sum of positive squares in only one way, i.e., 1122853883904 + 349316100 = 1059648^2 + 18690^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a self number, because there is not a number n which added to its sum of digits gives 1123203200004.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15600044409 + ... + 15600044480.

Almost surely, 2^{1123203200004} is an apocalyptic number.

It is an amenable number.

1123203200004 is an abundant number, since it is smaller than the sum of its proper divisors (1716004888986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123203200004 is a wasteful number, since it uses less digits than its factorization.

1123203200004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31200088899 (or 31200088894 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1123203200004 its reverse (4000023023211), we get a palindrome (5123226223215).

The spelling of 1123203200004 in words is "one trillion, one hundred twenty-three billion, two hundred three million, two hundred thousand, four".