123442020424 has 16 divisors (see below), whose sum is σ = 232986597120. Its totient is φ = 61312261200.

The previous prime is 123442020409. The next prime is 123442020439. The reversal of 123442020424 is 424020244321.

It is an interprime number because it is at equal distance from previous prime (123442020409) and next prime (123442020439).

It is a junction number, because it is equal to n+sod(n) for n = 123442020392 and 123442020401.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51092344 + ... + 51094759.

It is an arithmetic number, because the mean of its divisors is an integer number (14561662320).

Almost surely, 2^123442020424 is an apocalyptic number.

It is an amenable number.

123442020424 is a deficient number, since it is larger than the sum of its proper divisors (109544576696).

123442020424 is a wasteful number, since it uses less digits than its factorization.

123442020424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102187260 (or 102187256 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 123442020424 its reverse (424020244321), we get a palindrome (547462264745).

The spelling of 123442020424 in words is "one hundred twenty-three billion, four hundred forty-two million, twenty thousand, four hundred twenty-four".