123120030032 has 40 divisors (see below), whose sum is σ = 256946173440. Its totient is φ = 56984019840.

The previous prime is 123120029993. The next prime is 123120030043. The reversal of 123120030032 is 230030021321.

It is a super-3 number, since 3×123120030032³ (a number of 34 digits) contains 333 as substring.

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, 5384807 + ... + 5407622.

It is an arithmetic number, because the mean of its divisors is an integer number (6423654336).

Almost surely, 2^123120030032 is an apocalyptic number.

It is an amenable number.

123120030032 is an abundant number, since it is smaller than the sum of its proper divisors (133826143408).

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

123120030032 is a wasteful number, since it uses less digits than its factorization.

123120030032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10792491 (or 10792485 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 123120030032 its reverse (230030021321), we get a palindrome (353150051353).

The spelling of 123120030032 in words is "one hundred twenty-three billion, one hundred twenty million, thirty thousand, thirty-two".