111453012541 has 8 divisors (see below), whose sum is σ = 124165160280. Its totient is φ = 99332127552.

The previous prime is 111453012523. The next prime is 111453012563. The reversal of 111453012541 is 145210354111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 30083168025 + 81369844516 = 173445^2 + 285254^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111453012541 - 2⁵ = 111453012509 is a prime.

It is a super-3 number, since 3×111453012541³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111453012241) 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, 147815290 + ... + 147816043.

It is an arithmetic number, because the mean of its divisors is an integer number (15520645035).

Almost surely, 2^111453012541 is an apocalyptic number.

It is an amenable number.

111453012541 is a deficient number, since it is larger than the sum of its proper divisors (12712147739).

111453012541 is a wasteful number, since it uses less digits than its factorization.

111453012541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295631375.

The product of its (nonzero) digits is 2400, while the sum is 28.

Adding to 111453012541 its reverse (145210354111), we get a palindrome (256663366652).

The spelling of 111453012541 in words is "one hundred eleven billion, four hundred fifty-three million, twelve thousand, five hundred forty-one".