1200123223 has 8 divisors (see below), whose sum is σ = 1295820288. Its totient is φ = 1104909024.

The previous prime is 1200123173. The next prime is 1200123241. The reversal of 1200123223 is 3223210021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1200123223 - 2⁹ = 1200122711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1200123197 and 1200123206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200123263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115540 + ... + 125497.

It is an arithmetic number, because the mean of its divisors is an integer number (161977536).

Almost surely, 2^1200123223 is an apocalyptic number.

1200123223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1200123223 is a deficient number, since it is larger than the sum of its proper divisors (95697065).

1200123223 is a wasteful number, since it uses less digits than its factorization.

1200123223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241433.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1200123223 is about 34642.7946765269. The cubic root of 1200123223 is about 1062.6949412646.

Adding to 1200123223 its reverse (3223210021), we get a palindrome (4423333244).

The spelling of 1200123223 in words is "one billion, two hundred million, one hundred twenty-three thousand, two hundred twenty-three".