123132231321 has 16 divisors (see below), whose sum is σ = 179548083648. Its totient is φ = 74439488000.

The previous prime is 123132231283. The next prime is 123132231337.

123132231321 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 123132231321 - 2¹⁰ = 123132230297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123132231291 and 123132231300.

It is not an unprimeable number, because it can be changed into a prime (123132231121) 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, 4639236 + ... + 4665701.

It is an arithmetic number, because the mean of its divisors is an integer number (11221755228).

Almost surely, 2^123132231321 is an apocalyptic number.

123132231321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123132231321 is a deficient number, since it is larger than the sum of its proper divisors (56415852327).

123132231321 is a wasteful number, since it uses less digits than its factorization.

123132231321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9305352.

The product of its digits is 1296, while the sum is 24.

It can be divided in two parts, 123132 and 231321, that added together give a palindrome (354453).

The spelling of 123132231321 in words is "one hundred twenty-three billion, one hundred thirty-two million, two hundred thirty-one thousand, three hundred twenty-one".