12031452321 has 32 divisors (see below), whose sum is σ = 18441105408. Its totient is φ = 6834930240.

The previous prime is 12031452287. The next prime is 12031452353. The reversal of 12031452321 is 12325413021.

It is not a de Polignac number, because 12031452321 - 2¹⁰ = 12031451297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12031452291 and 12031452300.

It is not an unprimeable number, because it can be changed into a prime (12031452361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3074356 + ... + 3078266.

It is an arithmetic number, because the mean of its divisors is an integer number (576284544).

Almost surely, 2^12031452321 is an apocalyptic number.

It is an amenable number.

12031452321 is a deficient number, since it is larger than the sum of its proper divisors (6409653087).

12031452321 is a wasteful number, since it uses less digits than its factorization.

12031452321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4741.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 12031452321 its reverse (12325413021), we get a palindrome (24356865342).

The spelling of 12031452321 in words is "twelve billion, thirty-one million, four hundred fifty-two thousand, three hundred twenty-one".