11111324020 has 48 divisors (see below), whose sum is σ = 23506737408. Its totient is φ = 4411693440.

The previous prime is 11111323999. The next prime is 11111324047. The reversal of 11111324020 is 2042311111.

It is a junction number, because it is equal to n+sod(n) for n = 11111323985 and 11111324003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1821175 + ... + 1827265.

It is an arithmetic number, because the mean of its divisors is an integer number (489723696).

Almost surely, 2^11111324020 is an apocalyptic number.

11111324020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11111324020 is an abundant number, since it is smaller than the sum of its proper divisors (12395413388).

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

11111324020 is a wasteful number, since it uses less digits than its factorization.

11111324020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6760 (or 6758 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11111324020 its reverse (2042311111), we get a palindrome (13153635131).

The spelling of 11111324020 in words is "eleven billion, one hundred eleven million, three hundred twenty-four thousand, twenty".