1128218300 has 36 divisors (see below), whose sum is σ = 2670803016. Its totient is φ = 410260800.

The previous prime is 1128218281. The next prime is 1128218303. The reversal of 1128218300 is 38128211.

It is a self number, because there is not a number n which added to its sum of digits gives 1128218300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128218303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 511727 + ... + 513926.

Almost surely, 2^1128218300 is an apocalyptic number.

1128218300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1128218300 is an abundant number, since it is smaller than the sum of its proper divisors (1542584716).

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

1128218300 is a wasteful number, since it uses less digits than its factorization.

1128218300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025678 (or 1025671 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 1128218300 is about 33588.9609842281. The cubic root of 1128218300 is about 1041.0327204704.

It can be divided in two parts, 112821 and 8300, that added together give a palindrome (121121).

The spelling of 1128218300 in words is "one billion, one hundred twenty-eight million, two hundred eighteen thousand, three hundred".