1123302642 has 128 divisors (see below), whose sum is σ = 3000913920. Its totient is φ = 271349760.

The previous prime is 1123302641. The next prime is 1123302643. The reversal of 1123302642 is 2462033211.

It is an interprime number because it is at equal distance from previous prime (1123302641) and next prime (1123302643).

It is not an unprimeable number, because it can be changed into a prime (1123302641) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 698203 + ... + 699809.

It is an arithmetic number, because the mean of its divisors is an integer number (23444640).

Almost surely, 2^1123302642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123302642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1500456960).

1123302642 is an abundant number, since it is smaller than the sum of its proper divisors (1877611278).

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

1123302642 is a wasteful number, since it uses less digits than its factorization.

1123302642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1736.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 1123302642 is about 33515.7073922064. The cubic root of 1123302642 is about 1039.5185894454.

Adding to 1123302642 its reverse (2462033211), we get a palindrome (3585335853).

The spelling of 1123302642 in words is "one billion, one hundred twenty-three million, three hundred two thousand, six hundred forty-two".