1313444011 has 4 divisors (see below), whose sum is σ = 1432848024. Its totient is φ = 1194040000.

The previous prime is 1313443997. The next prime is 1313444023. The reversal of 1313444011 is 1104443131.

It is a happy number.

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 1313444011 - 2⁹ = 1313443499 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1313444051) 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, 59701990 + ... + 59702011.

It is an arithmetic number, because the mean of its divisors is an integer number (358212006).

Almost surely, 2^1313444011 is an apocalyptic number.

1313444011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1313444011 is a deficient number, since it is larger than the sum of its proper divisors (119404013).

1313444011 is a wasteful number, since it uses less digits than its factorization.

1313444011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119404012.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1313444011 is about 36241.4681131987. The cubic root of 1313444011 is about 1095.1422182064.

Adding to 1313444011 its reverse (1104443131), we get a palindrome (2417887142).

The spelling of 1313444011 in words is "one billion, three hundred thirteen million, four hundred forty-four thousand, eleven".