31123133322 has 32 divisors (see below), whose sum is σ = 63903596544. Its totient is φ = 10100468400.

The previous prime is 31123133317. The next prime is 31123133339. The reversal of 31123133322 is 22333132113.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 31123133292 and 31123133301.

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 15 ways as a sum of consecutive naturals, for example, 235054 + ... + 342777.

It is an arithmetic number, because the mean of its divisors is an integer number (1996987392).

Almost surely, 2^31123133322 is an apocalyptic number.

31123133322 is an abundant number, since it is smaller than the sum of its proper divisors (32780463222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31123133322 is a wasteful number, since it uses less digits than its factorization.

31123133322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578074.

The product of its digits is 1944, while the sum is 24.

Adding to 31123133322 its reverse (22333132113), we get a palindrome (53456265435).

The spelling of 31123133322 in words is "thirty-one billion, one hundred twenty-three million, one hundred thirty-three thousand, three hundred twenty-two".