313132232222 has 4 divisors (see below), whose sum is σ = 469698348336. Its totient is φ = 156566116110.

The previous prime is 313132232201. The next prime is 313132232293. The reversal of 313132232222 is 222232231313.

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

It is a junction number, because it is equal to n+sod(n) for n = 313132232191 and 313132232200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78283058054 + ... + 78283058057.

It is an arithmetic number, because the mean of its divisors is an integer number (117424587084).

Almost surely, 2^313132232222 is an apocalyptic number.

313132232222 is a deficient number, since it is larger than the sum of its proper divisors (156566116114).

313132232222 is a wasteful number, since it uses less digits than its factorization.

313132232222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156566116113.

The product of its digits is 5184, while the sum is 26.

Adding to 313132232222 its reverse (222232231313), we get a palindrome (535364463535).

Subtracting from 313132232222 its reverse (222232231313), we obtain a palindrome (90900000909).

The spelling of 313132232222 in words is "three hundred thirteen billion, one hundred thirty-two million, two hundred thirty-two thousand, two hundred twenty-two".