123869012 has 12 divisors (see below), whose sum is σ = 216871200. Its totient is φ = 61905816.

The previous prime is 123868991. The next prime is 123869041. The reversal of 123869012 is 210968321.

It is a super-2 number, since 2×123869012² = 30687064267712288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123869012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4739 + ... + 16437.

It is an arithmetic number, because the mean of its divisors is an integer number (18072600).

Almost surely, 2^123869012 is an apocalyptic number.

It is an amenable number.

123869012 is a deficient number, since it is larger than the sum of its proper divisors (93002188).

123869012 is a wasteful number, since it uses less digits than its factorization.

123869012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14350 (or 14348 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 123869012 is about 11129.6456367667. The cubic root of 123869012 is about 498.4874449685.

The spelling of 123869012 in words is "one hundred twenty-three million, eight hundred sixty-nine thousand, twelve".