111343042420 has 24 divisors (see below), whose sum is σ = 233894352384. Its totient is φ = 44523128736.

The previous prime is 111343042339. The next prime is 111343042423. The reversal of 111343042420 is 24240343111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111343042423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 815592 + ... + 942271.

It is an arithmetic number, because the mean of its divisors is an integer number (9745598016).

Almost surely, 2^111343042420 is an apocalyptic number.

111343042420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111343042420 is an abundant number, since it is smaller than the sum of its proper divisors (122551309964).

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

111343042420 is a wasteful number, since it uses less digits than its factorization.

111343042420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761039 (or 1761037 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 111343042420 its reverse (24240343111), we get a palindrome (135583385531).

The spelling of 111343042420 in words is "one hundred eleven billion, three hundred forty-three million, forty-two thousand, four hundred twenty".