111424420100 has 72 divisors (see below), whose sum is σ = 278187403200. Its totient is φ = 37946229120.

The previous prime is 111424420013. The next prime is 111424420109. The reversal of 111424420100 is 1024424111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (111424420109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 429854 + ... + 638453.

Almost surely, 2^111424420100 is an apocalyptic number.

111424420100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111424420100 is an abundant number, since it is smaller than the sum of its proper divisors (166762983100).

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

111424420100 is a wasteful number, since it uses less digits than its factorization.

111424420100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068477 (or 1068470 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 111424420100 its reverse (1024424111), we get a palindrome (112448844211).

The spelling of 111424420100 in words is "one hundred eleven billion, four hundred twenty-four million, four hundred twenty thousand, one hundred".