123444444321 has 48 divisors (see below), whose sum is σ = 201754358208. Its totient is φ = 72071856000.

The previous prime is 123444444313. The next prime is 123444444371.

123444444321 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 123444444321 - 2³ = 123444444313 is a prime.

It is a super-3 number, since 3×123444444321³ (a number of 34 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (123444444301) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 203130 + ... + 536796.

It is an arithmetic number, because the mean of its divisors is an integer number (4203215796).

Almost surely, 2^123444444321 is an apocalyptic number.

123444444321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123444444321 is a deficient number, since it is larger than the sum of its proper divisors (78309913887).

123444444321 is a wasteful number, since it uses less digits than its factorization.

123444444321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333822 (or 333819 counting only the distinct ones).

The product of its digits is 147456, while the sum is 36.

It can be divided in two parts, 123444 and 444321, that added together give a palindrome (567765).

The spelling of 123444444321 in words is "one hundred twenty-three billion, four hundred forty-four million, four hundred forty-four thousand, three hundred twenty-one".