1123203102 has 64 divisors (see below), whose sum is σ = 2619122688. Its totient is φ = 314496000.

The previous prime is 1123203097. The next prime is 1123203127. The reversal of 1123203102 is 2013023211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 538702 + ... + 540782.

It is an arithmetic number, because the mean of its divisors is an integer number (40923792).

Almost surely, 2^1123203102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123203102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1309561344).

1123203102 is an abundant number, since it is smaller than the sum of its proper divisors (1495919586).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123203102 is a wasteful number, since it uses less digits than its factorization.

1123203102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2345.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1123203102 is about 33514.2223839372. Note that the first 3 decimals coincide. The cubic root of 1123203102 is about 1039.4878833433.

Adding to 1123203102 its reverse (2013023211), we get a palindrome (3136226313).

The spelling of 1123203102 in words is "one billion, one hundred twenty-three million, two hundred three thousand, one hundred two".