13230431331 has 8 divisors (see below), whose sum is σ = 18997542480. Its totient is φ = 8141803872.

The previous prime is 13230431323. The next prime is 13230431351. The reversal of 13230431331 is 13313403231.

It is a happy number.

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

It is not a de Polignac number, because 13230431331 - 2³ = 13230431323 is a prime.

It is a super-2 number, since 2×13230431331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13230431351) 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, 169620876 + ... + 169620953.

It is an arithmetic number, because the mean of its divisors is an integer number (2374692810).

Almost surely, 2^13230431331 is an apocalyptic number.

13230431331 is a deficient number, since it is larger than the sum of its proper divisors (5767111149).

13230431331 is a wasteful number, since it uses less digits than its factorization.

13230431331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339241845.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 13230431331 its reverse (13313403231), we get a palindrome (26543834562).

The spelling of 13230431331 in words is "thirteen billion, two hundred thirty million, four hundred thirty-one thousand, three hundred thirty-one".