2321011021 has 16 divisors (see below), whose sum is σ = 2698382848. Its totient is φ = 1955145600.

The previous prime is 2321011009. The next prime is 2321011039. The reversal of 2321011021 is 1201101232.

2321011021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2321011021 - 2¹⁷ = 2320879949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2321010992 and 2321011010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321011051) 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, 972796 + ... + 975178.

It is an arithmetic number, because the mean of its divisors is an integer number (168648928).

Almost surely, 2^2321011021 is an apocalyptic number.

It is an amenable number.

2321011021 is a deficient number, since it is larger than the sum of its proper divisors (377371827).

2321011021 is a wasteful number, since it uses less digits than its factorization.

2321011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4732.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2321011021 is about 48176.8722625286. The cubic root of 2321011021 is about 1324.0134621125.

Adding to 2321011021 its reverse (1201101232), we get a palindrome (3522112253).

The spelling of 2321011021 in words is "two billion, three hundred twenty-one million, eleven thousand, twenty-one".