123150012 has 24 divisors (see below), whose sum is σ = 290581200. Its totient is φ = 40588416.

The previous prime is 123149987. The next prime is 123150029. The reversal of 123150012 is 210051321.

It is a junction number, because it is equal to n+sod(n) for n = 123149973 and 123150000.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56587 + ... + 58722.

It is an arithmetic number, because the mean of its divisors is an integer number (12107550).

Almost surely, 2^123150012 is an apocalyptic number.

123150012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123150012 is an abundant number, since it is smaller than the sum of its proper divisors (167431188).

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

123150012 is a wasteful number, since it uses less digits than its factorization.

123150012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115405 (or 115403 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 123150012 is about 11097.2975088532. The cubic root of 123150012 is about 497.5210795509.

The spelling of 123150012 in words is "one hundred twenty-three million, one hundred fifty thousand, twelve".