11111313320 has 32 divisors (see below), whose sum is σ = 25107774120. Its totient is φ = 4425446400.

The previous prime is 11111313307. The next prime is 11111313331. The reversal of 11111313320 is 2331311111.

It can be written as a sum of positive squares in 4 ways, for example, as 5979310276 + 5132003044 = 77326^2 + 71638^2 .

It is a super-2 number, since 2×11111313320² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 586781 + ... + 605420.

Almost surely, 2^11111313320 is an apocalyptic number.

11111313320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111313320 is an abundant number, since it is smaller than the sum of its proper divisors (13996460800).

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

11111313320 is a wasteful number, since it uses less digits than its factorization.

11111313320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192445 (or 1192441 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 11111313320 its reverse (2331311111), we get a palindrome (13442624431).

The spelling of 11111313320 in words is "eleven billion, one hundred eleven million, three hundred thirteen thousand, three hundred twenty".