1123200430400 has 84 divisors (see below), whose sum is σ = 2773753680828. Its totient is φ = 447658045440.

The previous prime is 1123200430381. The next prime is 1123200430411. The reversal of 1123200430400 is 40340023211.

It can be written as a sum of positive squares in 6 ways, for example, as 80628738304 + 1042571692096 = 283952^2 + 1021064^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 823949 + ... + 1710348.

Almost surely, 2^{1123200430400} is an apocalyptic number.

1123200430400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1123200430400 is an abundant number, since it is smaller than the sum of its proper divisors (1650553250428).

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

1123200430400 is a wasteful number, since it uses less digits than its factorization.

1123200430400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2534596 (or 2534581 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1123200430400 its reverse (40340023211), we get a palindrome (1163540453611).

The spelling of 1123200430400 in words is "one trillion, one hundred twenty-three billion, two hundred million, four hundred thirty thousand, four hundred".