2031321220322 has 4 divisors (see below), whose sum is σ = 3046981830486. Its totient is φ = 1015660610160.

The previous prime is 2031321220303. The next prime is 2031321220403. The reversal of 2031321220322 is 2230221231302.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1887461074801 + 143860145521 = 1373849^2 + 379289^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 507830305079 + ... + 507830305082.

Almost surely, 2^{2031321220322} is an apocalyptic number.

2031321220322 is a deficient number, since it is larger than the sum of its proper divisors (1015660610164).

2031321220322 is a wasteful number, since it uses less digits than its factorization.

2031321220322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015660610163.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 2031321220322 its reverse (2230221231302), we get a palindrome (4261542451624).

The spelling of 2031321220322 in words is "two trillion, thirty-one billion, three hundred twenty-one million, two hundred twenty thousand, three hundred twenty-two".