1031321222043 has 16 divisors (see below), whose sum is σ = 1582843127040. Its totient is φ = 585086652576.

The previous prime is 1031321221963. The next prime is 1031321222047. The reversal of 1031321222043 is 3402221231301.

It is a de Polignac number, because none of the positive numbers 2^k-1031321222043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1031321222047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176653680 + ... + 176659517.

It is an arithmetic number, because the mean of its divisors is an integer number (98927695440).

Almost surely, 2^{1031321222043} is an apocalyptic number.

1031321222043 is a deficient number, since it is larger than the sum of its proper divisors (551521904997).

1031321222043 is a wasteful number, since it uses less digits than its factorization.

1031321222043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353313346.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1031321222043 its reverse (3402221231301), we get a palindrome (4433542453344).

The spelling of 1031321222043 in words is "one trillion, thirty-one billion, three hundred twenty-one million, two hundred twenty-two thousand, forty-three".