111146531543 has 8 divisors (see below), whose sum is σ = 111774771456. Its totient is φ = 110519249400.

The previous prime is 111146531527. The next prime is 111146531563. The reversal of 111146531543 is 345135641111.

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 111146531543 - 2⁴ = 111146531527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111146531563) 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, 6053 + ... + 471518.

It is an arithmetic number, because the mean of its divisors is an integer number (13971846432).

Almost surely, 2^111146531543 is an apocalyptic number.

111146531543 is a deficient number, since it is larger than the sum of its proper divisors (628239913).

111146531543 is a wasteful number, since it uses less digits than its factorization.

111146531543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478885.

The product of its digits is 21600, while the sum is 35.

The spelling of 111146531543 in words is "one hundred eleven billion, one hundred forty-six million, five hundred thirty-one thousand, five hundred forty-three".