1313111532 has 48 divisors (see below), whose sum is σ = 3173103360. Its totient is φ = 422140992.

The previous prime is 1313111519. The next prime is 1313111539. The reversal of 1313111532 is 2351113131.

It is a junction number, because it is equal to n+sod(n) for n = 1313111499 and 1313111508.

It is not an unprimeable number, because it can be changed into a prime (1313111539) 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 15 ways as a sum of consecutive naturals, for example, 453393 + ... + 456279.

It is an arithmetic number, because the mean of its divisors is an integer number (66106320).

Almost surely, 2^1313111532 is an apocalyptic number.

1313111532 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1313111532 is an abundant number, since it is smaller than the sum of its proper divisors (1859991828).

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

1313111532 is a wasteful number, since it uses less digits than its factorization.

1313111532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230 (or 4228 counting only the distinct ones).

The product of its digits is 270, while the sum is 21.

The square root of 1313111532 is about 36236.8808260314. The cubic root of 1313111532 is about 1095.0498040357.

Adding to 1313111532 its reverse (2351113131), we get a palindrome (3664224663).

The spelling of 1313111532 in words is "one billion, three hundred thirteen million, one hundred eleven thousand, five hundred thirty-two".