123424012 has 24 divisors (see below), whose sum is σ = 229055904. Its totient is φ = 57990912.

The previous prime is 123423967. The next prime is 123424013. The reversal of 123424012 is 210424321.

It is a super-2 number, since 2×123424012² = 30466973476352288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123424013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64818 + ... + 66694.

It is an arithmetic number, because the mean of its divisors is an integer number (9543996).

Almost surely, 2^123424012 is an apocalyptic number.

It is an amenable number.

123424012 is a deficient number, since it is larger than the sum of its proper divisors (105631892).

123424012 is a wasteful number, since it uses less digits than its factorization.

123424012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2865 (or 2863 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 123424012 is about 11109.6359976374. The cubic root of 123424012 is about 497.8897892166.

Adding to 123424012 its reverse (210424321), we get a palindrome (333848333).

The spelling of 123424012 in words is "one hundred twenty-three million, four hundred twenty-four thousand, twelve".