1311334224 has 40 divisors (see below), whose sum is σ = 3496895232. Its totient is φ = 423010560.

The previous prime is 1311334223. The next prime is 1311334289. The reversal of 1311334224 is 4224331131.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1311334194 and 1311334203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311334223) 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, 439149 + ... + 442124.

Almost surely, 2^1311334224 is an apocalyptic number.

It is an amenable number.

1311334224 is an abundant number, since it is smaller than the sum of its proper divisors (2185561008).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311334224 is a wasteful number, since it uses less digits than its factorization.

1311334224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881315 (or 881309 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

The square root of 1311334224 is about 36212.3490538794. The cubic root of 1311334224 is about 1094.5555277879. Note that the first 4 decimals are identical.

Adding to 1311334224 its reverse (4224331131), we get a palindrome (5535665355).

The spelling of 1311334224 in words is "one billion, three hundred eleven million, three hundred thirty-four thousand, two hundred twenty-four".