13122312331 has 8 divisors (see below), whose sum is σ = 13247373744. Its totient is φ = 12997296000.

The previous prime is 13122312263. The next prime is 13122312353. The reversal of 13122312331 is 13321322131.

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

It is a cyclic number.

It is not a de Polignac number, because 13122312331 - 2¹¹ = 13122310283 is a prime.

It is a super-2 number, since 2×13122312331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13122312391) 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, 1002831 + ... + 1015831.

It is an arithmetic number, because the mean of its divisors is an integer number (1655921718).

Almost surely, 2^13122312331 is an apocalyptic number.

13122312331 is a deficient number, since it is larger than the sum of its proper divisors (125061413).

13122312331 is a wasteful number, since it uses less digits than its factorization.

13122312331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22541.

The product of its digits is 648, while the sum is 22.

Adding to 13122312331 its reverse (13321322131), we get a palindrome (26443634462).

The spelling of 13122312331 in words is "thirteen billion, one hundred twenty-two million, three hundred twelve thousand, three hundred thirty-one".