10131232321 has 8 divisors (see below), whose sum is σ = 11589153344. Its totient is φ = 8675961840.

The previous prime is 10131232271. The next prime is 10131232343. The reversal of 10131232321 is 12323213101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10131232321 - 2¹⁵ = 10131199553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10131232351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 654435 + ... + 669736.

It is an arithmetic number, because the mean of its divisors is an integer number (1448644168).

Almost surely, 2^10131232321 is an apocalyptic number.

It is an amenable number.

10131232321 is a deficient number, since it is larger than the sum of its proper divisors (1457921023).

10131232321 is a wasteful number, since it uses less digits than its factorization.

10131232321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325271.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 10131232321 its reverse (12323213101), we get a palindrome (22454445422).

The spelling of 10131232321 in words is "ten billion, one hundred thirty-one million, two hundred thirty-two thousand, three hundred twenty-one".