123415302042 has 12 divisors (see below), whose sum is σ = 267399821130. Its totient is φ = 41138434008.

The previous prime is 123415302037. The next prime is 123415302107. The reversal of 123415302042 is 240203514321.

123415302042 is a `hidden beast` number, since 12 + 3 + 415 + 30 + 204 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 119798362161 + 3616939881 = 346119^2 + 60141^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123415301997 and 123415302015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3428202817 + ... + 3428202852.

Almost surely, 2^123415302042 is an apocalyptic number.

123415302042 is an abundant number, since it is smaller than the sum of its proper divisors (143984519088).

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

123415302042 is a wasteful number, since it uses less digits than its factorization.

123415302042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6856405677 (or 6856405674 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 123415302042 its reverse (240203514321), we get a palindrome (363618816363).

The spelling of 123415302042 in words is "one hundred twenty-three billion, four hundred fifteen million, three hundred two thousand, forty-two".