1200123203 has 8 divisors (see below), whose sum is σ = 1210805760. Its totient is φ = 1189460160.

The previous prime is 1200123173. The next prime is 1200123241. The reversal of 1200123203 is 3023210021.

It is a happy number.

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 1200123203 - 2⁸ = 1200122947 is a prime.

It is a Duffinian 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, 136583 + ... + 145103.

It is an arithmetic number, because the mean of its divisors is an integer number (151350720).

Almost surely, 2^1200123203 is an apocalyptic number.

1200123203 is a deficient number, since it is larger than the sum of its proper divisors (10682557).

1200123203 is a wasteful number, since it uses less digits than its factorization.

1200123203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9757.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 1200123203 is about 34642.7943878666. The cubic root of 1200123203 is about 1062.6949353613.

Adding to 1200123203 its reverse (3023210021), we get a palindrome (4223333224).

The spelling of 1200123203 in words is "one billion, two hundred million, one hundred twenty-three thousand, two hundred three".