31121223334 has 8 divisors (see below), whose sum is σ = 47244267000. Its totient is φ = 15373134336.

The previous prime is 31121223317. The next prime is 31121223347. The reversal of 31121223334 is 43332212113.

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

It is a junction number, because it is equal to n+sod(n) for n = 31121223299 and 31121223308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93738459 + ... + 93738790.

It is an arithmetic number, because the mean of its divisors is an integer number (5905533375).

Almost surely, 2^31121223334 is an apocalyptic number.

31121223334 is a deficient number, since it is larger than the sum of its proper divisors (16123043666).

31121223334 is a wasteful number, since it uses less digits than its factorization.

31121223334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187477334.

The product of its digits is 2592, while the sum is 25.

Adding to 31121223334 its reverse (43332212113), we get a palindrome (74453435447).

The spelling of 31121223334 in words is "thirty-one billion, one hundred twenty-one million, two hundred twenty-three thousand, three hundred thirty-four".