13412312331 has 24 divisors (see below), whose sum is σ = 19641701184. Its totient is φ = 8073678240.

The previous prime is 13412312321. The next prime is 13412312339. The reversal of 13412312331 is 13321321431.

It is not a de Polignac number, because 13412312331 - 2¹¹ = 13412310283 is a prime.

It is a super-2 number, since 2×13412312331² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13412312339) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 723480 + ... + 741786.

It is an arithmetic number, because the mean of its divisors is an integer number (818404216).

Almost surely, 2^13412312331 is an apocalyptic number.

13412312331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13412312331 is a deficient number, since it is larger than the sum of its proper divisors (6229388853).

13412312331 is a wasteful number, since it uses less digits than its factorization.

13412312331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18619 (or 18470 counting only the distinct ones).

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

Adding to 13412312331 its reverse (13321321431), we get a palindrome (26733633762).

The spelling of 13412312331 in words is "thirteen billion, four hundred twelve million, three hundred twelve thousand, three hundred thirty-one".