1331412211 has 4 divisors (see below), whose sum is σ = 1374361024. Its totient is φ = 1288463400.

The previous prime is 1331412191. The next prime is 1331412223. The reversal of 1331412211 is 1122141331.

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

It is a cyclic number.

It is not a de Polignac number, because 1331412211 - 2¹¹ = 1331410163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331412241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21474360 + ... + 21474421.

It is an arithmetic number, because the mean of its divisors is an integer number (343590256).

Almost surely, 2^1331412211 is an apocalyptic number.

1331412211 is a deficient number, since it is larger than the sum of its proper divisors (42948813).

1331412211 is an equidigital number, since it uses as much as digits as its factorization.

1331412211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42948812.

The product of its digits is 144, while the sum is 19.

The square root of 1331412211 is about 36488.5216335220. The cubic root of 1331412211 is about 1100.1135450285.

Adding to 1331412211 its reverse (1122141331), we get a palindrome (2453553542).

The spelling of 1331412211 in words is "one billion, three hundred thirty-one million, four hundred twelve thousand, two hundred eleven".