1311233 has 8 divisors (see below), whose sum is σ = 1634880. Its totient is φ = 1021680.

The previous prime is 1311229. The next prime is 1311239. The reversal of 1311233 is 3321131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1311233 - 2² = 1311229 is a prime.

It is a super-3 number, since 3×1311233³ = 6763334491530859011, which contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1311239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8438 + ... + 8591.

It is an arithmetic number, because the mean of its divisors is an integer number (204360).

2^1311233 is an apocalyptic number.

It is an amenable number.

1311233 is a deficient number, since it is larger than the sum of its proper divisors (323647).

1311233 is a wasteful number, since it uses less digits than its factorization.

1311233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17047.

The product of its digits is 54, while the sum is 14.

The square root of 1311233 is about 1145.0908260920. The cubic root of 1311233 is about 109.4527363562.

Adding to 1311233 its reverse (3321131), we get a palindrome (4632364).

The spelling of 1311233 in words is "one million, three hundred eleven thousand, two hundred thirty-three".