1021320213223 has 8 divisors (see below), whose sum is σ = 1082307376080. Its totient is φ = 962050998720.

The previous prime is 1021320213197. The next prime is 1021320213247. The reversal of 1021320213223 is 3223120231201.

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 1021320213223 - 2⁵ = 1021320213191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021320213194 and 1021320213203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021320213253) 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, 429485865 + ... + 429488242.

It is an arithmetic number, because the mean of its divisors is an integer number (135288422010).

Almost surely, 2^{1021320213223} is an apocalyptic number.

1021320213223 is a deficient number, since it is larger than the sum of its proper divisors (60987162857).

1021320213223 is an equidigital number, since it uses as much as digits as its factorization.

1021320213223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858974177.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1021320213223 its reverse (3223120231201), we get a palindrome (4244440444424).

The spelling of 1021320213223 in words is "one trillion, twenty-one billion, three hundred twenty million, two hundred thirteen thousand, two hundred twenty-three".