1201111330 has 16 divisors (see below), whose sum is σ = 2181837240. Its totient is φ = 476036352.

The previous prime is 1201111297. The next prime is 1201111333. The reversal of 1201111330 is 331111021.

It can be written as a sum of positive squares in 4 ways, for example, as 1157564529 + 43546801 = 34023^2 + 6599^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1201111330.

It is not an unprimeable number, because it can be changed into a prime (1201111333) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 549879 + ... + 552058.

Almost surely, 2^1201111330 is an apocalyptic number.

1201111330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1201111330 is a deficient number, since it is larger than the sum of its proper divisors (980725910).

1201111330 is a wasteful number, since it uses less digits than its factorization.

1201111330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102053.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1201111330 is about 34657.0531061139. The cubic root of 1201111330 is about 1062.9865136182.

Adding to 1201111330 its reverse (331111021), we get a palindrome (1532222351).

The spelling of 1201111330 in words is "one billion, two hundred one million, one hundred eleven thousand, three hundred thirty".