123234234012 has 18 divisors (see below), whose sum is σ = 311508758288. Its totient is φ = 41078077992.

The previous prime is 123234233999. The next prime is 123234234043. The reversal of 123234234012 is 210432432321.

123234234012 is a `hidden beast` number, since 1 + 2 + 3 + 234 + 23 + 401 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×123234234012² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 1711586548 + ... + 1711586619.

Almost surely, 2^123234234012 is an apocalyptic number.

123234234012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123234234012 is an abundant number, since it is smaller than the sum of its proper divisors (188274524276).

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

123234234012 is a wasteful number, since it uses less digits than its factorization.

123234234012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3423173177 (or 3423173172 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 123234234012 its reverse (210432432321), we get a palindrome (333666666333).

The spelling of 123234234012 in words is "one hundred twenty-three billion, two hundred thirty-four million, two hundred thirty-four thousand, twelve".