123206131608 has 32 divisors (see below), whose sum is σ = 352017519360. Its totient is φ = 35201751840.

The previous prime is 123206131547. The next prime is 123206131649. The reversal of 123206131608 is 806131602321.

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, 366684748 + ... + 366685083.

It is an arithmetic number, because the mean of its divisors is an integer number (11000547480).

Almost surely, 2^123206131608 is an apocalyptic number.

It is an amenable number.

123206131608 is an abundant number, since it is smaller than the sum of its proper divisors (228811387752).

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

123206131608 is a wasteful number, since it uses less digits than its factorization.

123206131608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733369847 (or 733369843 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

Adding to 123206131608 its reverse (806131602321), we get a palindrome (929337733929).

The spelling of 123206131608 in words is "one hundred twenty-three billion, two hundred six million, one hundred thirty-one thousand, six hundred eight".