111311030300020 has 48 divisors (see below), whose sum is σ = 235050933248208. Its totient is φ = 44277431869440.

The previous prime is 111311030299967. The next prime is 111311030300027. The reversal of 111311030300020 is 20003030113111.

It can be written as a sum of positive squares in 8 ways, for example, as 325563818724 + 110985466481296 = 570582^2 + 10534964^2 .

It is a junction number, because it is equal to n+sod(n) for n = 111311030299967 and 111311030300003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111311030300027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1640050 + ... + 15010390.

It is an arithmetic number, because the mean of its divisors is an integer number (4896894442671).

Almost surely, 2^{111311030300020} is an apocalyptic number.

111311030300020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111311030300020 is an abundant number, since it is smaller than the sum of its proper divisors (123739902948188).

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

111311030300020 is a wasteful number, since it uses less digits than its factorization.

111311030300020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13372660 (or 13372658 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 111311030300020 its reverse (20003030113111), we get a palindrome (131314060413131).

The spelling of 111311030300020 in words is "one hundred eleven trillion, three hundred eleven billion, thirty million, three hundred thousand, twenty".