1199013000 has 128 divisors (see below), whose sum is σ = 3903793920. Its totient is φ = 305817600.

The previous prime is 1199012987. The next prime is 1199013007. The reversal of 1199013000 is 3109911.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1199013007) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 60312 + ... + 77688.

It is an arithmetic number, because the mean of its divisors is an integer number (30498390).

Almost surely, 2^1199013000 is an apocalyptic number.

1199013000 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 1199013000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1951896960).

1199013000 is an abundant number, since it is smaller than the sum of its proper divisors (2704780920).

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

1199013000 is a wasteful number, since it uses less digits than its factorization.

1199013000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17424 (or 17410 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 24.

The square root of 1199013000 is about 34626.7671029220. The cubic root of 1199013000 is about 1062.3671437111.

The spelling of 1199013000 in words is "one billion, one hundred ninety-nine million, thirteen thousand".