1021330023121 has 16 divisors (see below), whose sum is σ = 1034848229184. Its totient is φ = 1007888490304.

The previous prime is 1021330023097. The next prime is 1021330023127. The reversal of 1021330023121 is 1213200331201.

It is a cyclic number.

It is not a de Polignac number, because 1021330023121 - 2⁵ = 1021330023089 is a prime.

It is a super-2 number, since 2×1021330023121² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021330023127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88937046 + ... + 88948528.

It is an arithmetic number, because the mean of its divisors is an integer number (64678014324).

Almost surely, 2^{1021330023121} is an apocalyptic number.

It is an amenable number.

1021330023121 is a deficient number, since it is larger than the sum of its proper divisors (13518206063).

1021330023121 is a wasteful number, since it uses less digits than its factorization.

1021330023121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14720.

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

Adding to 1021330023121 its reverse (1213200331201), we get a palindrome (2234530354322).

The spelling of 1021330023121 in words is "one trillion, twenty-one billion, three hundred thirty million, twenty-three thousand, one hundred twenty-one".