1125120300 has 72 divisors (see below), whose sum is σ = 3268238736. Its totient is φ = 298844160.

The previous prime is 1125120287. The next prime is 1125120317. The reversal of 1125120300 is 30215211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1125120300.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69804 + ... + 84396.

Almost surely, 2^1125120300 is an apocalyptic number.

1125120300 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 1125120300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1634119368).

1125120300 is an abundant number, since it is smaller than the sum of its proper divisors (2143118436).

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

1125120300 is a wasteful number, since it uses less digits than its factorization.

1125120300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14867 (or 14860 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 1125120300 is about 33542.8129410758. The cubic root of 1125120300 is about 1040.0789819208.

Adding to 1125120300 its reverse (30215211), we get a palindrome (1155335511).

The spelling of 1125120300 in words is "one billion, one hundred twenty-five million, one hundred twenty thousand, three hundred".