123071555173 has 8 divisors (see below), whose sum is σ = 142433626880. Its totient is φ = 104154588720.

The previous prime is 123071555153. The next prime is 123071555183. The reversal of 123071555173 is 371555170321.

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

It is not a de Polignac number, because 123071555173 - 2¹³ = 123071546981 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 (123071555153) 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, 111275718 + ... + 111276823.

It is an arithmetic number, because the mean of its divisors is an integer number (17804203360).

Almost surely, 2^123071555173 is an apocalyptic number.

It is an amenable number.

123071555173 is a deficient number, since it is larger than the sum of its proper divisors (19362071707).

123071555173 is an equidigital number, since it uses as much as digits as its factorization.

123071555173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222552627.

The product of its (nonzero) digits is 110250, while the sum is 40.

The spelling of 123071555173 in words is "one hundred twenty-three billion, seventy-one million, five hundred fifty-five thousand, one hundred seventy-three".