123042474440 has 16 divisors (see below), whose sum is σ = 276845567580. Its totient is φ = 49216989760.

The previous prime is 123042474439. The next prime is 123042474479. The reversal of 123042474440 is 44474240321.

It can be written as a sum of positive squares in 2 ways, for example, as 122736714244 + 305760196 = 350338^2 + 17486^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123042474440.

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, 1538030891 + ... + 1538030970.

Almost surely, 2^123042474440 is an apocalyptic number.

123042474440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123042474440 is an abundant number, since it is smaller than the sum of its proper divisors (153803093140).

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

123042474440 is a wasteful number, since it uses less digits than its factorization.

123042474440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076061872 (or 3076061868 counting only the distinct ones).

The product of its (nonzero) digits is 86016, while the sum is 35.

The spelling of 123042474440 in words is "one hundred twenty-three billion, forty-two million, four hundred seventy-four thousand, four hundred forty".