440453352123 has 12 divisors (see below), whose sum is σ = 636216294480. Its totient is φ = 293632846416.

The previous prime is 440453352113. The next prime is 440453352139. The reversal of 440453352123 is 321253354044.

440453352123 is a `hidden beast` number, since 4 + 40 + 45 + 33 + 521 + 23 = 666.

It is not a de Polignac number, because 440453352123 - 2⁴ = 440453352107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (440453352113) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 1452690 + ... + 1729512.

It is an arithmetic number, because the mean of its divisors is an integer number (53018024540).

Almost surely, 2^440453352123 is an apocalyptic number.

440453352123 is a deficient number, since it is larger than the sum of its proper divisors (195762942357).

440453352123 is a wasteful number, since it uses less digits than its factorization.

440453352123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 453618 (or 453615 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

The spelling of 440453352123 in words is "four hundred forty billion, four hundred fifty-three million, three hundred fifty-two thousand, one hundred twenty-three".