1021321342011 has 8 divisors (see below), whose sum is σ = 1363408421184. Its totient is φ = 680057578760.

The previous prime is 1021321342009. The next prime is 1021321342049. The reversal of 1021321342011 is 1102431231201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1021321342011 - 2¹ = 1021321342009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1021321342001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205826085 + ... + 205831046.

It is an arithmetic number, because the mean of its divisors is an integer number (170426052648).

Almost surely, 2^{1021321342011} is an apocalyptic number.

1021321342011 is a deficient number, since it is larger than the sum of its proper divisors (342087079173).

1021321342011 is an equidigital number, since it uses as much as digits as its factorization.

1021321342011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411657961.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1021321342011 its reverse (1102431231201), we get a palindrome (2123752573212).

The spelling of 1021321342011 in words is "one trillion, twenty-one billion, three hundred twenty-one million, three hundred forty-two thousand, eleven".