123031133166 has 8 divisors (see below), whose sum is σ = 246062266344. Its totient is φ = 41010377720.

The previous prime is 123031133119. The next prime is 123031133167. The reversal of 123031133166 is 661331130321.

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

123031133166 is an admirable number.

It is a super-2 number, since 2×123031133166² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123031133167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10252594425 + ... + 10252594436.

It is an arithmetic number, because the mean of its divisors is an integer number (30757783293).

Almost surely, 2^123031133166 is an apocalyptic number.

123031133166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123031133166 is a wasteful number, since it uses less digits than its factorization.

123031133166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20505188866.

The product of its (nonzero) digits is 5832, while the sum is 30.

Adding to 123031133166 its reverse (661331130321), we get a palindrome (784362263487).

The spelling of 123031133166 in words is "one hundred twenty-three billion, thirty-one million, one hundred thirty-three thousand, one hundred sixty-six".