1200133000 has 64 divisors (see below), whose sum is σ = 3063640320. Its totient is φ = 436408000.

The previous prime is 1200132959. The next prime is 1200133001. The reversal of 1200133000 is 3310021.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is not an unprimeable number, because it can be changed into a prime (1200133001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43552 + ... + 65551.

It is an arithmetic number, because the mean of its divisors is an integer number (47869380).

Almost surely, 2^1200133000 is an apocalyptic number.

1200133000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200133000 is an abundant number, since it is smaller than the sum of its proper divisors (1863507320).

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

1200133000 is a wasteful number, since it uses less digits than its factorization.

1200133000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109135 (or 109121 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1200133000 is about 34642.9357878341. The cubic root of 1200133000 is about 1062.6978270628.

Adding to 1200133000 its reverse (3310021), we get a palindrome (1203443021).

The spelling of 1200133000 in words is "one billion, two hundred million, one hundred thirty-three thousand".