105543233451 has 36 divisors (see below), whose sum is σ = 163675356208. Its totient is φ = 65483824032.

The previous prime is 105543233441. The next prime is 105543233531. The reversal of 105543233451 is 154332345501.

105543233451 is a `hidden beast` number, since 1 + 0 + 554 + 3 + 23 + 34 + 51 = 666.

It is not a de Polignac number, because 105543233451 - 2²² = 105539039147 is a prime.

It is a super-2 number, since 2×105543233451² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105543233441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 123415 + ... + 475728.

Almost surely, 2^105543233451 is an apocalyptic number.

105543233451 is a deficient number, since it is larger than the sum of its proper divisors (58132122757).

105543233451 is a wasteful number, since it uses less digits than its factorization.

105543233451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599232 (or 599206 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 105543233451 its reverse (154332345501), we get a palindrome (259875578952).

The spelling of 105543233451 in words is "one hundred five billion, five hundred forty-three million, two hundred thirty-three thousand, four hundred fifty-one".