123442423124 has 24 divisors (see below), whose sum is σ = 216566359968. Its totient is φ = 61566392160.

The previous prime is 123442423073. The next prime is 123442423147. The reversal of 123442423124 is 421324244321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10787534 + ... + 10798970.

It is an arithmetic number, because the mean of its divisors is an integer number (9023598332).

Almost surely, 2^123442423124 is an apocalyptic number.

It is an amenable number.

123442423124 is a deficient number, since it is larger than the sum of its proper divisors (93123936844).

123442423124 is a wasteful number, since it uses less digits than its factorization.

123442423124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17975 (or 17973 counting only the distinct ones).

The product of its digits is 36864, while the sum is 32.

Adding to 123442423124 its reverse (421324244321), we get a palindrome (544766667445).

The spelling of 123442423124 in words is "one hundred twenty-three billion, four hundred forty-two million, four hundred twenty-three thousand, one hundred twenty-four".