111453012540 has 144 divisors (see below), whose sum is σ = 346969598976. Its totient is φ = 28948886400.

The previous prime is 111453012523. The next prime is 111453012563. The reversal of 111453012540 is 45210354111.

111453012540 is a `hidden beast` number, since 1 + 1 + 1 + 4 + 530 + 125 + 4 + 0 = 666.

It is a super-3 number, since 3×111453012540³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1008205 + ... + 1113275.

It is an arithmetic number, because the mean of its divisors is an integer number (2409511104).

Almost surely, 2^111453012540 is an apocalyptic number.

111453012540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111453012540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173484799488).

111453012540 is an abundant number, since it is smaller than the sum of its proper divisors (235516586436).

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

111453012540 is a wasteful number, since it uses less digits than its factorization.

111453012540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105240 (or 105235 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 111453012540 its reverse (45210354111), we get a palindrome (156663366651).

The spelling of 111453012540 in words is "one hundred eleven billion, four hundred fifty-three million, twelve thousand, five hundred forty".