1111331313 has 8 divisors (see below), whose sum is σ = 1646416800. Its totient is φ = 740887524.

The previous prime is 1111331279. The next prime is 1111331321. The reversal of 1111331313 is 3131331111.

1111331313 is a `hidden beast` number, since 11 + 11 + 331 + 313 = 666.

It is not a de Polignac number, because 1111331313 - 2¹³ = 1111323121 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1111331213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20580183 + ... + 20580236.

It is an arithmetic number, because the mean of its divisors is an integer number (205802100).

Almost surely, 2^1111331313 is an apocalyptic number.

It is an amenable number.

1111331313 is a deficient number, since it is larger than the sum of its proper divisors (535085487).

1111331313 is an equidigital number, since it uses as much as digits as its factorization.

1111331313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41160428 (or 41160422 counting only the distinct ones).

The product of its digits is 81, while the sum is 18.

The square root of 1111331313 is about 33336.6361980329. The cubic root of 1111331313 is about 1035.8125859785.

Adding to 1111331313 its reverse (3131331111), we get a palindrome (4242662424).

The spelling of 1111331313 in words is "one billion, one hundred eleven million, three hundred thirty-one thousand, three hundred thirteen".