100645871043 has 8 divisors (see below), whose sum is σ = 134418528000. Its totient is φ = 66985230728.

The previous prime is 100645870973. The next prime is 100645871059. The reversal of 100645871043 is 340178546001.

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 100645871043 - 2²¹ = 100643773891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100645870992 and 100645871010.

It is not an unprimeable number, because it can be changed into a prime (100645870043) 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 7 ways as a sum of consecutive naturals, for example, 28002063 + ... + 28005656.

It is an arithmetic number, because the mean of its divisors is an integer number (16802316000).

Almost surely, 2^100645871043 is an apocalyptic number.

100645871043 is a deficient number, since it is larger than the sum of its proper divisors (33772656957).

100645871043 is an equidigital number, since it uses as much as digits as its factorization.

100645871043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56008321.

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 100645871043 in words is "one hundred billion, six hundred forty-five million, eight hundred seventy-one thousand, forty-three".