1200105630 has 24 divisors (see below), whose sum is σ = 3120274872. Its totient is φ = 320028144.

The previous prime is 1200105623. The next prime is 1200105649. The reversal of 1200105630 is 365010021.

1200105630 is a `hidden beast` number, since 1 + 20 + 0 + 10 + 5 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6667164 + ... + 6667343.

It is an arithmetic number, because the mean of its divisors is an integer number (130011453).

Almost surely, 2^1200105630 is an apocalyptic number.

1200105630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200105630 is an abundant number, since it is smaller than the sum of its proper divisors (1920169242).

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

1200105630 is a wasteful number, since it uses less digits than its factorization.

1200105630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13334520 (or 13334517 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 1200105630 is about 34642.5407555508. The cubic root of 1200105630 is about 1062.6897484413.

Adding to 1200105630 its reverse (365010021), we get a palindrome (1565115651).

The spelling of 1200105630 in words is "one billion, two hundred million, one hundred five thousand, six hundred thirty".