1111043201 has 4 divisors (see below), whose sum is σ = 1111172052. Its totient is φ = 1110914352.

The previous prime is 1111043191. The next prime is 1111043207. The reversal of 1111043201 is 1023401111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 202322176 + 908721025 = 14224^2 + 30145^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111043201 - 2²⁶ = 1043934337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1111043207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50486 + ... + 69071.

It is an arithmetic number, because the mean of its divisors is an integer number (277793013).

Almost surely, 2^1111043201 is an apocalyptic number.

It is an amenable number.

1111043201 is a deficient number, since it is larger than the sum of its proper divisors (128851).

1111043201 is an equidigital number, since it uses as much as digits as its factorization.

1111043201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128850.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1111043201 is about 33332.3146661014. The cubic root of 1111043201 is about 1035.7230669709.

Adding to 1111043201 its reverse (1023401111), we get a palindrome (2134444312).

The spelling of 1111043201 in words is "one billion, one hundred eleven million, forty-three thousand, two hundred one".