123932841605 has 8 divisors (see below), whose sum is σ = 148731632664. Its totient is φ = 99138124800.

The previous prime is 123932841581. The next prime is 123932841691. The reversal of 123932841605 is 506148239321.

It can be written as a sum of positive squares in 4 ways, for example, as 16580940289 + 107351901316 = 128767^2 + 327646^2 .

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

It is not a de Polignac number, because 123932841605 - 2⁶ = 123932841541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 951236 + ... + 1073645.

It is an arithmetic number, because the mean of its divisors is an integer number (18591454083).

Almost surely, 2^123932841605 is an apocalyptic number.

It is an amenable number.

123932841605 is a deficient number, since it is larger than the sum of its proper divisors (24798791059).

123932841605 is a wasteful number, since it uses less digits than its factorization.

123932841605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2037127.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 123932841605 in words is "one hundred twenty-three billion, nine hundred thirty-two million, eight hundred forty-one thousand, six hundred five".