123042205166 has 8 divisors (see below), whose sum is σ = 184565935200. Its totient is φ = 61520226768.

The previous prime is 123042205109. The next prime is 123042205193. The reversal of 123042205166 is 661502240321.

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

It is a super-2 number, since 2×123042205166² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245366 + ... + 553433.

It is an arithmetic number, because the mean of its divisors is an integer number (23070741900).

Almost surely, 2^123042205166 is an apocalyptic number.

123042205166 is a deficient number, since it is larger than the sum of its proper divisors (61523730034).

123042205166 is an equidigital number, since it uses as much as digits as its factorization.

123042205166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 875818.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 123042205166 its reverse (661502240321), we get a palindrome (784544445487).

The spelling of 123042205166 in words is "one hundred twenty-three billion, forty-two million, two hundred five thousand, one hundred sixty-six".