1011320332021 has 8 divisors (see below), whose sum is σ = 1012068908288. Its totient is φ = 1010572038000.

The previous prime is 1011320331997. The next prime is 1011320332109. The reversal of 1011320332021 is 1202330231101.

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 1011320332021 - 2¹³ = 1011320323829 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 1011320332021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011320332621) 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, 7386931 + ... + 7522591.

It is an arithmetic number, because the mean of its divisors is an integer number (126508613536).

Almost surely, 2^{1011320332021} is an apocalyptic number.

It is an amenable number.

1011320332021 is a deficient number, since it is larger than the sum of its proper divisors (748576267).

1011320332021 is a wasteful number, since it uses less digits than its factorization.

1011320332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141123.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1011320332021 its reverse (1202330231101), we get a palindrome (2213650563122).

The spelling of 1011320332021 in words is "one trillion, eleven billion, three hundred twenty million, three hundred thirty-two thousand, twenty-one".