1121871300 has 144 divisors (see below), whose sum is σ = 3590311872. Its totient is φ = 268185600.

The previous prime is 1121871281. The next prime is 1121871301. The reversal of 1121871300 is 31781211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1121871301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 238572 + ... + 243228.

Almost surely, 2^1121871300 is an apocalyptic number.

1121871300 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 1121871300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1795155936).

1121871300 is an abundant number, since it is smaller than the sum of its proper divisors (2468440572).

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

1121871300 is a wasteful number, since it uses less digits than its factorization.

1121871300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4758 (or 4751 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 1121871300 is about 33494.3472842807. The cubic root of 1121871300 is about 1039.0768743974.

The spelling of 1121871300 in words is "one billion, one hundred twenty-one million, eight hundred seventy-one thousand, three hundred".