111240131302020 has 48 divisors (see below), whose sum is σ = 355968420167808. Its totient is φ = 25426315726080.

The previous prime is 111240131301991. The next prime is 111240131302051. The reversal of 111240131302020 is 20203131042111.

It is a Harshad number since it is a multiple of its sum of digits (21).

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, 132428727321 + ... + 132428728160.

It is an arithmetic number, because the mean of its divisors is an integer number (7416008753496).

Almost surely, 2^{111240131302020} is an apocalyptic number.

111240131302020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111240131302020 is an abundant number, since it is smaller than the sum of its proper divisors (244728288865788).

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

111240131302020 is a wasteful number, since it uses less digits than its factorization.

111240131302020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264857455500 (or 264857455498 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 111240131302020 its reverse (20203131042111), we get a palindrome (131443262344131).

The spelling of 111240131302020 in words is "one hundred eleven trillion, two hundred forty billion, one hundred thirty-one million, three hundred two thousand, twenty".