1200123043144 has 32 divisors (see below), whose sum is σ = 2256718744440. Its totient is φ = 598332544000.

The previous prime is 1200123043127. The next prime is 1200123043237. The reversal of 1200123043144 is 4413403210021.

It can be written as a sum of positive squares in 4 ways, for example, as 1181269007044 + 18854036100 = 1086862^2 + 137310^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8336802 + ... + 8479534.

Almost surely, 2^{1200123043144} is an apocalyptic number.

It is an amenable number.

1200123043144 is a deficient number, since it is larger than the sum of its proper divisors (1056595701296).

1200123043144 is a wasteful number, since it uses less digits than its factorization.

1200123043144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145761 (or 145757 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1200123043144 its reverse (4413403210021), we get a palindrome (5613526253165).

The spelling of 1200123043144 in words is "one trillion, two hundred billion, one hundred twenty-three million, forty-three thousand, one hundred forty-four".