1021330011321 has 24 divisors (see below), whose sum is σ = 1511491965984. Its totient is φ = 664167291840.

The previous prime is 1021330011313. The next prime is 1021330011367. The reversal of 1021330011321 is 1231100331201.

1021330011321 is a `hidden beast` number, since 1 + 0 + 2 + 1 + 330 + 0 + 11 + 321 = 666.

1021330011321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1021330011321 - 2³ = 1021330011313 is a prime.

It is a super-2 number, since 2×1021330011321² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1021330011294 and 1021330011303.

It is not an unprimeable number, because it can be changed into a prime (1021330011521) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1978050 + ... + 2440356.

It is an arithmetic number, because the mean of its divisors is an integer number (62978831916).

Almost surely, 2^{1021330011321} is an apocalyptic number.

It is an amenable number.

1021330011321 is a deficient number, since it is larger than the sum of its proper divisors (490161954663).

1021330011321 is a wasteful number, since it uses less digits than its factorization.

1021330011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468341 (or 468338 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1021330011321 its reverse (1231100331201), we get a palindrome (2252430342522).

The spelling of 1021330011321 in words is "one trillion, twenty-one billion, three hundred thirty million, eleven thousand, three hundred twenty-one".