111403520020 has 48 divisors (see below), whose sum is σ = 257303870208. Its totient is φ = 40258419840.

The previous prime is 111403520003. The next prime is 111403520069. The reversal of 111403520020 is 20025304111.

It is a self number, because there is not a number n which added to its sum of digits gives 111403520020.

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, 4546026 + ... + 4570465.

It is an arithmetic number, because the mean of its divisors is an integer number (5360497296).

Almost surely, 2^111403520020 is an apocalyptic number.

111403520020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111403520020 is an abundant number, since it is smaller than the sum of its proper divisors (145900350188).

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

111403520020 is a wasteful number, since it uses less digits than its factorization.

111403520020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9116560 (or 9116558 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

Adding to 111403520020 its reverse (20025304111), we get a palindrome (131428824131).

The spelling of 111403520020 in words is "one hundred eleven billion, four hundred three million, five hundred twenty thousand, twenty".