31142404322 has 8 divisors (see below), whose sum is σ = 46714760400. Its totient is φ = 15570817524.

The previous prime is 31142404289. The next prime is 31142404327. The reversal of 31142404322 is 22340424113.

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 = 31142404291 and 31142404300.

It is not an unprimeable number, because it can be changed into a prime (31142404327) 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, 77372 + ... + 261287.

It is an arithmetic number, because the mean of its divisors is an integer number (5839345050).

Almost surely, 2^31142404322 is an apocalyptic number.

31142404322 is a deficient number, since it is larger than the sum of its proper divisors (15572356078).

31142404322 is a wasteful number, since it uses less digits than its factorization.

31142404322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384640.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 31142404322 its reverse (22340424113), we get a palindrome (53482828435).

The spelling of 31142404322 in words is "thirty-one billion, one hundred forty-two million, four hundred four thousand, three hundred twenty-two".