111422401040 has 40 divisors (see below), whose sum is σ = 267990090840. Its totient is φ = 43032098816.

The previous prime is 111422401033. The next prime is 111422401049. The reversal of 111422401040 is 40104224111.

It can be written as a sum of positive squares in 4 ways, for example, as 16203253264 + 95219147776 = 127292^2 + 308576^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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 (111422401049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24011129 + ... + 24015768.

It is an arithmetic number, because the mean of its divisors is an integer number (6699752271).

Almost surely, 2^111422401040 is an apocalyptic number.

111422401040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111422401040 is an abundant number, since it is smaller than the sum of its proper divisors (156567689800).

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

111422401040 is a wasteful number, since it uses less digits than its factorization.

111422401040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48026939 (or 48026933 counting only the distinct ones).

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

Adding to 111422401040 its reverse (40104224111), we get a palindrome (151526625151).

The spelling of 111422401040 in words is "one hundred eleven billion, four hundred twenty-two million, four hundred one thousand, forty".