123667012 has 48 divisors (see below), whose sum is σ = 252887040. Its totient is φ = 51825312.

The previous prime is 123667001. The next prime is 123667039. The reversal of 123667012 is 210766321.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294939 + ... + 295357.

It is an arithmetic number, because the mean of its divisors is an integer number (5268480).

Almost surely, 2^123667012 is an apocalyptic number.

It is an amenable number.

123667012 is an abundant number, since it is smaller than the sum of its proper divisors (129220028).

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

123667012 is a wasteful number, since it uses less digits than its factorization.

123667012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 123667012 is about 11120.5670718718. The cubic root of 123667012 is about 498.2163272561.

The spelling of 123667012 in words is "one hundred twenty-three million, six hundred sixty-seven thousand, twelve".