123230304012 has 48 divisors (see below), whose sum is σ = 297484104960. Its totient is φ = 39656108352.

The previous prime is 123230303981. The next prime is 123230304013. The reversal of 123230304012 is 210403032321.

It is a super-2 number, since 2×123230304012² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123230304012.

It is not an unprimeable number, because it can be changed into a prime (123230304013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6249633 + ... + 6269319.

It is an arithmetic number, because the mean of its divisors is an integer number (6197585520).

Almost surely, 2^123230304012 is an apocalyptic number.

123230304012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123230304012 is an abundant number, since it is smaller than the sum of its proper divisors (174253800948).

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

123230304012 is a wasteful number, since it uses less digits than its factorization.

123230304012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37710 (or 37708 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 123230304012 its reverse (210403032321), we get a palindrome (333633336333).

The spelling of 123230304012 in words is "one hundred twenty-three billion, two hundred thirty million, three hundred four thousand, twelve".