2301320021 has 16 divisors (see below), whose sum is σ = 3089885568. Its totient is φ = 1655294400.

The previous prime is 2301319939. The next prime is 2301320029. The reversal of 2301320021 is 1200231032.

It is a happy number.

2301320021 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 2301320021 - 2³⁰ = 1227578197 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2301319978 and 2301320005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2301320029) 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, 1148510 + ... + 1150511.

It is an arithmetic number, because the mean of its divisors is an integer number (193117848).

Almost surely, 2^2301320021 is an apocalyptic number.

It is an amenable number.

2301320021 is a deficient number, since it is larger than the sum of its proper divisors (788565547).

2301320021 is a wasteful number, since it uses less digits than its factorization.

2301320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299052.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2301320021 is about 47972.0754293579. The cubic root of 2301320021 is about 1320.2586004287.

Adding to 2301320021 its reverse (1200231032), we get a palindrome (3501551053).

It can be divided in two parts, 23013 and 20021, that added together give a palindrome (43034).

The spelling of 2301320021 in words is "two billion, three hundred one million, three hundred twenty thousand, twenty-one".