1031313231322 has 16 divisors (see below), whose sum is σ = 1745796693600. Its totient is φ = 452613957040.

The previous prime is 1031313231317. The next prime is 1031313231331. The reversal of 1031313231322 is 2231323131301.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808238572 + ... + 808239847.

It is an arithmetic number, because the mean of its divisors is an integer number (109112293350).

Almost surely, 2^{1031313231322} is an apocalyptic number.

1031313231322 is a deficient number, since it is larger than the sum of its proper divisors (714483462278).

1031313231322 is a wasteful number, since it uses less digits than its factorization.

1031313231322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1616478461.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1031313231322 its reverse (2231323131301), we get a palindrome (3262636362623).

The spelling of 1031313231322 in words is "one trillion, thirty-one billion, three hundred thirteen million, two hundred thirty-one thousand, three hundred twenty-two".