1200344103 has 40 divisors (see below), whose sum is σ = 2052082560. Its totient is φ = 684968400.

The previous prime is 1200344081. The next prime is 1200344113. The reversal of 1200344103 is 3014430021.

It is not a de Polignac number, because 1200344103 - 2¹² = 1200340007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200344113) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 821988 + ... + 823446.

It is an arithmetic number, because the mean of its divisors is an integer number (51302064).

Almost surely, 2^1200344103 is an apocalyptic number.

1200344103 is a deficient number, since it is larger than the sum of its proper divisors (851738457).

1200344103 is a wasteful number, since it uses less digits than its factorization.

1200344103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2929 (or 2920 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1200344103 is about 34645.9824943672. The cubic root of 1200344103 is about 1062.7601328091.

Adding to 1200344103 its reverse (3014430021), we get a palindrome (4214774124).

The spelling of 1200344103 in words is "one billion, two hundred million, three hundred forty-four thousand, one hundred three".