1123513700 has 72 divisors (see below), whose sum is σ = 2591709120. Its totient is φ = 421545600.

The previous prime is 1123513669. The next prime is 1123513717. The reversal of 1123513700 is 73153211.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192830 + ... + 198570.

It is an arithmetic number, because the mean of its divisors is an integer number (35995960).

Almost surely, 2^1123513700 is an apocalyptic number.

1123513700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123513700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1295854560).

1123513700 is an abundant number, since it is smaller than the sum of its proper divisors (1468195420).

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

1123513700 is a wasteful number, since it uses less digits than its factorization.

1123513700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5877 (or 5870 counting only the distinct ones).

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 1123513700 is about 33518.8558873957. The cubic root of 1123513700 is about 1039.5836906232.

Adding to 1123513700 its reverse (73153211), we get a palindrome (1196666911).

The spelling of 1123513700 in words is "one billion, one hundred twenty-three million, five hundred thirteen thousand, seven hundred".