105404502143 has 12 divisors (see below), whose sum is σ = 111256388880. Its totient is φ = 99842794656.

The previous prime is 105404502121. The next prime is 105404502157. The reversal of 105404502143 is 341205404501.

It is not a de Polignac number, because 105404502143 - 2⁶ = 105404502079 is a prime.

It is a super-2 number, since 2×105404502143² (a number of 23 digits) contains 22 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 (105404502103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 912758 + ... + 1021731.

It is an arithmetic number, because the mean of its divisors is an integer number (9271365740).

Almost surely, 2^105404502143 is an apocalyptic number.

105404502143 is a deficient number, since it is larger than the sum of its proper divisors (5851886737).

105404502143 is a wasteful number, since it uses less digits than its factorization.

105404502143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1934638 (or 1934615 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 105404502143 its reverse (341205404501), we get a palindrome (446609906644).

The spelling of 105404502143 in words is "one hundred five billion, four hundred four million, five hundred two thousand, one hundred forty-three".