1313233443 has 12 divisors (see below), whose sum is σ = 1898605488. Its totient is φ = 874698480.

The previous prime is 1313233423. The next prime is 1313233463. The reversal of 1313233443 is 3443323131.

1313233443 is a `hidden beast` number, since 1 + 313 + 2 + 3 + 344 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (1313233423) and next prime (1313233463).

It is not a de Polignac number, because 1313233443 - 2⁹ = 1313232931 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1313233423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55263 + ... + 75368.

It is an arithmetic number, because the mean of its divisors is an integer number (158217124).

Almost surely, 2^1313233443 is an apocalyptic number.

1313233443 is a deficient number, since it is larger than the sum of its proper divisors (585372045).

1313233443 is a wasteful number, since it uses less digits than its factorization.

1313233443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131754 (or 131751 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

The square root of 1313233443 is about 36238.5629268049. The cubic root of 1313233443 is about 1095.0836916079.

Adding to 1313233443 its reverse (3443323131), we get a palindrome (4756556574).

The spelling of 1313233443 in words is "one billion, three hundred thirteen million, two hundred thirty-three thousand, four hundred forty-three".