31243133422 has 8 divisors (see below), whose sum is σ = 46897272000. Its totient is φ = 15610709424.

The previous prime is 31243133419. The next prime is 31243133437. The reversal of 31243133422 is 22433134213.

It is a happy number.

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

It is a super-2 number, since 2×31243133422² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5425047 + ... + 5430802.

It is an arithmetic number, because the mean of its divisors is an integer number (5862159000).

Almost surely, 2^31243133422 is an apocalyptic number.

31243133422 is a deficient number, since it is larger than the sum of its proper divisors (15654138578).

31243133422 is a wasteful number, since it uses less digits than its factorization.

31243133422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10857290.

The product of its digits is 10368, while the sum is 28.

Adding to 31243133422 its reverse (22433134213), we get a palindrome (53676267635).

The spelling of 31243133422 in words is "thirty-one billion, two hundred forty-three million, one hundred thirty-three thousand, four hundred twenty-two".