1031321222011 has 16 divisors (see below), whose sum is σ = 1079430300000. Its totient is φ = 984060157696.

The previous prime is 1031321221963. The next prime is 1031321222047. The reversal of 1031321222011 is 1102221231301.

It is a cyclic number.

It is not a de Polignac number, because 1031321222011 - 2³⁹ = 481565408123 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031321222011.

It is not an unprimeable number, because it can be changed into a prime (1031321220011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4927860 + ... + 5132878.

It is an arithmetic number, because the mean of its divisors is an integer number (67464393750).

Almost surely, 2^{1031321222011} is an apocalyptic number.

1031321222011 is a deficient number, since it is larger than the sum of its proper divisors (48109077989).

1031321222011 is a wasteful number, since it uses less digits than its factorization.

1031321222011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207086.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1031321222011 its reverse (1102221231301), we get a palindrome (2133542453312).

The spelling of 1031321222011 in words is "one trillion, thirty-one billion, three hundred twenty-one million, two hundred twenty-two thousand, eleven".