1021322320323 has 16 divisors (see below), whose sum is σ = 1398423168000. Its totient is φ = 662794292160.

The previous prime is 1021322320267. The next prime is 1021322320357. The reversal of 1021322320323 is 3230232231201.

It is not a de Polignac number, because 1021322320323 - 2⁹ = 1021322319811 is a prime.

It is a super-3 number, since 3×1021322320323³ (a number of 37 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021322320293 and 1021322320302.

It is not an unprimeable number, because it can be changed into a prime (1021322320423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30330898 + ... + 30364551.

It is an arithmetic number, because the mean of its divisors is an integer number (87401448000).

Almost surely, 2^{1021322320323} is an apocalyptic number.

1021322320323 is a deficient number, since it is larger than the sum of its proper divisors (377100847677).

1021322320323 is an equidigital number, since it uses as much as digits as its factorization.

1021322320323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60695602.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 1021322320323 its reverse (3230232231201), we get a palindrome (4251554551524).

The spelling of 1021322320323 in words is "one trillion, twenty-one billion, three hundred twenty-two million, three hundred twenty thousand, three hundred twenty-three".