1121000320321 has 64 divisors (see below), whose sum is σ = 1445184529920. Its totient is φ = 846418083840.

The previous prime is 1121000320277. The next prime is 1121000320327. The reversal of 1121000320321 is 1230230001211.

It is not a de Polignac number, because 1121000320321 - 2¹³ = 1121000312129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121000320295 and 1121000320304.

It is not an unprimeable number, because it can be changed into a prime (1121000320327) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 80984361 + ... + 80998201.

It is an arithmetic number, because the mean of its divisors is an integer number (22581008280).

Almost surely, 2^{1121000320321} is an apocalyptic number.

It is an amenable number.

1121000320321 is a deficient number, since it is larger than the sum of its proper divisors (324184209599).

1121000320321 is a wasteful number, since it uses less digits than its factorization.

1121000320321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14314.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1121000320321 its reverse (1230230001211), we get a palindrome (2351230321532).

The spelling of 1121000320321 in words is "one trillion, one hundred twenty-one billion, three hundred twenty thousand, three hundred twenty-one".