123201830712 has 32 divisors (see below), whose sum is σ = 308020196880. Its totient is φ = 41065194240.

The previous prime is 123201830711. The next prime is 123201830747. The reversal of 123201830712 is 217038102321.

It is a self number, because there is not a number n which added to its sum of digits gives 123201830712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123201830711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 396412 + ... + 635252.

Almost surely, 2^123201830712 is an apocalyptic number.

123201830712 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123201830712 is an abundant number, since it is smaller than the sum of its proper divisors (184818366168).

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

123201830712 is a wasteful number, since it uses less digits than its factorization.

123201830712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260343 (or 260339 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 30.

The spelling of 123201830712 in words is "one hundred twenty-three billion, two hundred one million, eight hundred thirty thousand, seven hundred twelve".