124431320042 has 16 divisors (see below), whose sum is σ = 187227927360. Its totient is φ = 62022307872.

The previous prime is 124431319997. The next prime is 124431320051. The reversal of 124431320042 is 240023134421.

It is a junction number, because it is equal to n+sod(n) for n = 124431319993 and 124431320020.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 771953 + ... + 919115.

It is an arithmetic number, because the mean of its divisors is an integer number (11701745460).

Almost surely, 2^124431320042 is an apocalyptic number.

124431320042 is a deficient number, since it is larger than the sum of its proper divisors (62796607318).

124431320042 is a wasteful number, since it uses less digits than its factorization.

124431320042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148477.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 124431320042 its reverse (240023134421), we get a palindrome (364454454463).

The spelling of 124431320042 in words is "one hundred twenty-four billion, four hundred thirty-one million, three hundred twenty thousand, forty-two".