1200001110 has 128 divisors (see below), whose sum is σ = 3613814784. Its totient is φ = 247743360.

The previous prime is 1200001097. The next prime is 1200001123. The reversal of 1200001110 is 111000021.

It is an interprime number because it is at equal distance from previous prime (1200001097) and next prime (1200001123).

It is a Harshad number since it is a multiple of its sum of digits (6).

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 63 ways as a sum of consecutive naturals, for example, 374937 + ... + 378123.

It is an arithmetic number, because the mean of its divisors is an integer number (28232928).

Almost surely, 2^1200001110 is an apocalyptic number.

1200001110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200001110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1806907392).

1200001110 is an abundant number, since it is smaller than the sum of its proper divisors (2413813674).

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

1200001110 is a wasteful number, since it uses less digits than its factorization.

1200001110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3378.

The product of its (nonzero) digits is 2, while the sum is 6.

The square root of 1200001110 is about 34641.0321728438. The cubic root of 1200001110 is about 1062.6588968356.

Adding to 1200001110 its reverse (111000021), we get a palindrome (1311001131).

It can be divided in two parts, 12000011 and 10, that added together give a palindrome (12000021).

The spelling of 1200001110 in words is "one billion, two hundred million, one thousand, one hundred ten".