20173003149043 has 8 divisors (see below), whose sum is σ = 20450268732528. Its totient is φ = 19895762513664.

The previous prime is 20173003149029. The next prime is 20173003149083. The reversal of 20173003149043 is 34094130037102.

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

It is not a de Polignac number, because 20173003149043 - 2²¹ = 20173001051891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20173003148993 and 20173003149011.

It is not an unprimeable number, because it can be changed into a prime (20173003149083) 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, 4605805 + ... + 7845982.

It is an arithmetic number, because the mean of its divisors is an integer number (2556283591566).

Almost surely, 2^{20173003149043} is an apocalyptic number.

20173003149043 is a deficient number, since it is larger than the sum of its proper divisors (277265583485).

20173003149043 is a wasteful number, since it uses less digits than its factorization.

20173003149043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12474053.

The product of its (nonzero) digits is 54432, while the sum is 37.

The spelling of 20173003149043 in words is "twenty trillion, one hundred seventy-three billion, three million, one hundred forty-nine thousand, forty-three".