123130320108 has 48 divisors (see below), whose sum is σ = 289301725440. Its totient is φ = 40759048000.

The previous prime is 123130320101. The next prime is 123130320109. The reversal of 123130320108 is 801023031321.

It is a super-2 number, since 2×123130320108² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123130320101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 942583 + ... + 1065233.

It is an arithmetic number, because the mean of its divisors is an integer number (6027119280).

Almost surely, 2^123130320108 is an apocalyptic number.

It is an amenable number.

123130320108 is an abundant number, since it is smaller than the sum of its proper divisors (166171405332).

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

123130320108 is a wasteful number, since it uses less digits than its factorization.

123130320108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123238 (or 123236 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 123130320108 its reverse (801023031321), we get a palindrome (924153351429).

The spelling of 123130320108 in words is "one hundred twenty-three billion, one hundred thirty million, three hundred twenty thousand, one hundred eight".