123004420542 has 12 divisors (see below), whose sum is σ = 266509577880. Its totient is φ = 41001473508.

The previous prime is 123004420507. The next prime is 123004420543. The reversal of 123004420542 is 245024400321.

123004420542 is a `hidden beast` number, since 1 + 230 + 0 + 4 + 420 + 5 + 4 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123004420543) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3416789442 + ... + 3416789477.

It is an arithmetic number, because the mean of its divisors is an integer number (22209131490).

Almost surely, 2^123004420542 is an apocalyptic number.

123004420542 is an abundant number, since it is smaller than the sum of its proper divisors (143505157338).

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

123004420542 is a wasteful number, since it uses less digits than its factorization.

123004420542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6833578927 (or 6833578924 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 123004420542 its reverse (245024400321), we get a palindrome (368028820863).

The spelling of 123004420542 in words is "one hundred twenty-three billion, four million, four hundred twenty thousand, five hundred forty-two".