1312241333 has 16 divisors (see below), whose sum is σ = 1498820736. Its totient is φ = 1139624640.

The previous prime is 1312241323. The next prime is 1312241341. The reversal of 1312241333 is 3331422131.

It is a cyclic number.

It is not a de Polignac number, because 1312241333 - 2¹⁰ = 1312240309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1312241299 and 1312241308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312241323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17735 + ... + 54212.

It is an arithmetic number, because the mean of its divisors is an integer number (93676296).

Almost surely, 2^1312241333 is an apocalyptic number.

1312241333 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1312241333 is a deficient number, since it is larger than the sum of its proper divisors (186579403).

1312241333 is a wasteful number, since it uses less digits than its factorization.

1312241333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72044.

The product of its digits is 1296, while the sum is 23.

The square root of 1312241333 is about 36224.8717458047. The cubic root of 1312241333 is about 1094.8078540828.

Adding to 1312241333 its reverse (3331422131), we get a palindrome (4643663464).

The spelling of 1312241333 in words is "one billion, three hundred twelve million, two hundred forty-one thousand, three hundred thirty-three".