1011321202321 has 4 divisors (see below), whose sum is σ = 1043944466944. Its totient is φ = 978697937700.

The previous prime is 1011321202277. The next prime is 1011321202327. The reversal of 1011321202321 is 1232021231101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1011321202321 - 2⁹ = 1011321201809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011321202327) 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 3 ways as a sum of consecutive naturals, for example, 16311632265 + ... + 16311632326.

It is an arithmetic number, because the mean of its divisors is an integer number (260986116736).

Almost surely, 2^{1011321202321} is an apocalyptic number.

It is an amenable number.

1011321202321 is a deficient number, since it is larger than the sum of its proper divisors (32623264623).

1011321202321 is an equidigital number, since it uses as much as digits as its factorization.

1011321202321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32623264622.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1011321202321 its reverse (1232021231101), we get a palindrome (2243342433422).

The spelling of 1011321202321 in words is "one trillion, eleven billion, three hundred twenty-one million, two hundred two thousand, three hundred twenty-one".