1123243102 has 16 divisors (see below), whose sum is σ = 1774310400. Its totient is φ = 531831960.

The previous prime is 1123243073. The next prime is 1123243117. The reversal of 1123243102 is 2013423211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 1123243102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109827 + ... + 119617.

It is an arithmetic number, because the mean of its divisors is an integer number (110894400).

Almost surely, 2^1123243102 is an apocalyptic number.

1123243102 is a deficient number, since it is larger than the sum of its proper divisors (651067298).

1123243102 is a wasteful number, since it uses less digits than its factorization.

1123243102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12831.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1123243102 is about 33514.8191401953. The cubic root of 1123243102 is about 1039.5002227625.

Adding to 1123243102 its reverse (2013423211), we get a palindrome (3136666313).

The spelling of 1123243102 in words is "one billion, one hundred twenty-three million, two hundred forty-three thousand, one hundred two".