111353542540 has 24 divisors (see below), whose sum is σ = 235911846240. Its totient is φ = 44147244288.

The previous prime is 111353542507. The next prime is 111353542543. The reversal of 111353542540 is 45245353111.

It is a super-2 number, since 2×111353542540² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111353542496 and 111353542505.

It is not an unprimeable number, because it can be changed into a prime (111353542543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24633480 + ... + 24637999.

It is an arithmetic number, because the mean of its divisors is an integer number (9829660260).

Almost surely, 2^111353542540 is an apocalyptic number.

111353542540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111353542540 is an abundant number, since it is smaller than the sum of its proper divisors (124558303700).

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

111353542540 is a wasteful number, since it uses less digits than its factorization.

111353542540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49271601 (or 49271599 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 111353542540 its reverse (45245353111), we get a palindrome (156598895651).

The spelling of 111353542540 in words is "one hundred eleven billion, three hundred fifty-three million, five hundred forty-two thousand, five hundred forty".