123453354321 has 24 divisors (see below), whose sum is σ = 196538063904. Its totient is φ = 74048866560.

The previous prime is 123453354287. The next prime is 123453354337.

123453354321 is a `hidden beast` number, since 1 + 23 + 45 + 33 + 543 + 21 = 666.

123453354321 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 123453354321 - 2¹¹ = 123453352273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123453354361) 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 23 ways as a sum of consecutive naturals, for example, 6418251 + ... + 6437456.

It is an arithmetic number, because the mean of its divisors is an integer number (8189085996).

Almost surely, 2^123453354321 is an apocalyptic number.

123453354321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123453354321 is a deficient number, since it is larger than the sum of its proper divisors (73084709583).

123453354321 is a wasteful number, since it uses less digits than its factorization.

123453354321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12855821 (or 12855818 counting only the distinct ones).

The product of its digits is 129600, while the sum is 36.

It can be divided in two parts, 123453 and 354321, that added together give a palindrome (477774).

The spelling of 123453354321 in words is "one hundred twenty-three billion, four hundred fifty-three million, three hundred fifty-four thousand, three hundred twenty-one".