1201044011 has 4 divisors (see below), whose sum is σ = 1205717592. Its totient is φ = 1196370432.

The previous prime is 1201044001. The next prime is 1201044029. The reversal of 1201044011 is 1104401021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1104401021 = 1289 ⋅856789.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201044011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1201044001) 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 3 ways as a sum of consecutive naturals, for example, 2336405 + ... + 2336918.

It is an arithmetic number, because the mean of its divisors is an integer number (301429398).

Almost surely, 2^1201044011 is an apocalyptic number.

1201044011 is a deficient number, since it is larger than the sum of its proper divisors (4673581).

1201044011 is an equidigital number, since it uses as much as digits as its factorization.

1201044011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4673580.

The product of its (nonzero) digits is 32, while the sum is 14.

The square root of 1201044011 is about 34656.0818760575. The cubic root of 1201044011 is about 1062.9666540864.

Adding to 1201044011 its reverse (1104401021), we get a palindrome (2305445032).

The spelling of 1201044011 in words is "one billion, two hundred one million, forty-four thousand, eleven".