13422031331 has 4 divisors (see below), whose sum is σ = 13422540000. Its totient is φ = 13421522664.

The previous prime is 13422031291. The next prime is 13422031351. The reversal of 13422031331 is 13313022431.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13422031331 is a prime.

It is a super-2 number, since 2×13422031331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13422031297 and 13422031306.

It is not an unprimeable number, because it can be changed into a prime (13422031351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212456 + ... + 268293.

It is an arithmetic number, because the mean of its divisors is an integer number (3355635000).

Almost surely, 2^13422031331 is an apocalyptic number.

13422031331 is a deficient number, since it is larger than the sum of its proper divisors (508669).

13422031331 is an equidigital number, since it uses as much as digits as its factorization.

13422031331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 508668.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 13422031331 its reverse (13313022431), we get a palindrome (26735053762).

The spelling of 13422031331 in words is "thirteen billion, four hundred twenty-two million, thirty-one thousand, three hundred thirty-one".