12345054321 has 4 divisors (see below), whose sum is σ = 16460072432. Its totient is φ = 8230036212.

The previous prime is 12345054317. The next prime is 12345054343.

12345054321 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12345054321 - 2² = 12345054317 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12345054301) 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 3 ways as a sum of consecutive naturals, for example, 2057509051 + ... + 2057509056.

It is an arithmetic number, because the mean of its divisors is an integer number (4115018108).

Almost surely, 2^12345054321 is an apocalyptic number.

It is an amenable number.

12345054321 is a deficient number, since it is larger than the sum of its proper divisors (4115018111).

12345054321 is an equidigital number, since it uses as much as digits as its factorization.

12345054321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4115018110.

The product of its (nonzero) digits is 14400, while the sum is 30.

It can be divided in two parts, 123450 and 54321, that added together give a palindrome (177771).

The spelling of 12345054321 in words is "twelve billion, three hundred forty-five million, fifty-four thousand, three hundred twenty-one".