1031313223012 has 24 divisors (see below), whose sum is σ = 1811031441912. Its totient is φ = 513877478400.

The previous prime is 1031313223007. The next prime is 1031313223103. The reversal of 1031313223012 is 2103223131301.

It can be written as a sum of positive squares in 4 ways, for example, as 550112956416 + 481200266596 = 741696^2 + 693686^2 .

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, 2063562 + ... + 2514142.

It is an arithmetic number, because the mean of its divisors is an integer number (75459643413).

Almost surely, 2^{1031313223012} is an apocalyptic number.

It is an amenable number.

1031313223012 is a deficient number, since it is larger than the sum of its proper divisors (779718218900).

1031313223012 is a wasteful number, since it uses less digits than its factorization.

1031313223012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452559 (or 452557 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1031313223012 its reverse (2103223131301), we get a palindrome (3134536354313).

The spelling of 1031313223012 in words is "one trillion, thirty-one billion, three hundred thirteen million, two hundred twenty-three thousand, twelve".