123235532321 has 16 divisors (see below), whose sum is σ = 137275259328. Its totient is φ = 109690963200.

The previous prime is 123235532309. The next prime is 123235532327.

123235532321 is nontrivially palindromic in base 10.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123235532321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123235532327) 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 15 ways as a sum of consecutive naturals, for example, 450095 + ... + 670116.

It is an arithmetic number, because the mean of its divisors is an integer number (8579703708).

Almost surely, 2^123235532321 is an apocalyptic number.

123235532321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123235532321 is a deficient number, since it is larger than the sum of its proper divisors (14039727007).

123235532321 is a wasteful number, since it uses less digits than its factorization.

123235532321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1120432.

The product of its digits is 32400, while the sum is 32.

It can be divided in two parts, 123235 and 532321, that added together give a palindrome (655556).

The spelling of 123235532321 in words is "one hundred twenty-three billion, two hundred thirty-five million, five hundred thirty-two thousand, three hundred twenty-one".