1313533511 has 12 divisors (see below), whose sum is σ = 1363588824. Its totient is φ = 1265258400.

The previous prime is 1313533493. The next prime is 1313533547. The reversal of 1313533511 is 1153353131.

It is not a de Polignac number, because 1313533511 - 2¹⁰ = 1313532487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313533811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 411341 + ... + 414521.

It is an arithmetic number, because the mean of its divisors is an integer number (113632402).

Almost surely, 2^1313533511 is an apocalyptic number.

1313533511 is a deficient number, since it is larger than the sum of its proper divisors (50055313).

1313533511 is an equidigital number, since it uses as much as digits as its factorization.

1313533511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3730 (or 3701 counting only the distinct ones).

The product of its digits is 2025, while the sum is 26.

The square root of 1313533511 is about 36242.7028655425. The cubic root of 1313533511 is about 1095.1670925067.

Adding to 1313533511 its reverse (1153353131), we get a palindrome (2466886642).

The spelling of 1313533511 in words is "one billion, three hundred thirteen million, five hundred thirty-three thousand, five hundred eleven".