1200122323443 has 24 divisors (see below), whose sum is σ = 1734800389920. Its totient is φ = 799486248960.

The previous prime is 1200122323357. The next prime is 1200122323451. The reversal of 1200122323443 is 3443232210021.

1200122323443 is a `hidden beast` number, since 1 + 200 + 1 + 223 + 234 + 4 + 3 = 666.

It is not a de Polignac number, because 1200122323443 - 2¹⁶ = 1200122257907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1200122323453) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 78776755 + ... + 78791987.

It is an arithmetic number, because the mean of its divisors is an integer number (72283349580).

Almost surely, 2^{1200122323443} is an apocalyptic number.

1200122323443 is a deficient number, since it is larger than the sum of its proper divisors (534678066477).

1200122323443 is a wasteful number, since it uses less digits than its factorization.

1200122323443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21179 (or 21176 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 1200122323443 its reverse (3443232210021), we get a palindrome (4643354533464).

The spelling of 1200122323443 in words is "one trillion, two hundred billion, one hundred twenty-two million, three hundred twenty-three thousand, four hundred forty-three".