12331420231 has 8 divisors (see below), whose sum is σ = 13308680000. Its totient is φ = 11358258912.

The previous prime is 12331420183. The next prime is 12331420243. The reversal of 12331420231 is 13202413321.

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

It is not a de Polignac number, because 12331420231 - 2⁷ = 12331420103 is a prime.

It is a super-2 number, since 2×12331420231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12331420931) 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, 1018356 + ... + 1030393.

It is an arithmetic number, because the mean of its divisors is an integer number (1663585000).

Almost surely, 2^12331420231 is an apocalyptic number.

12331420231 is a deficient number, since it is larger than the sum of its proper divisors (977259769).

12331420231 is a wasteful number, since it uses less digits than its factorization.

12331420231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2049225.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12331420231 its reverse (13202413321), we get a palindrome (25533833552).

The spelling of 12331420231 in words is "twelve billion, three hundred thirty-one million, four hundred twenty thousand, two hundred thirty-one".