2301312021 has 16 divisors (see below), whose sum is σ = 3080136384. Its totient is φ = 1528360704.

The previous prime is 2301312017. The next prime is 2301312061. The reversal of 2301312021 is 1202131032.

It is not a de Polignac number, because 2301312021 - 2² = 2301312017 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2301312061) 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, 1227741 + ... + 1229613.

It is an arithmetic number, because the mean of its divisors is an integer number (192508524).

Almost surely, 2^2301312021 is an apocalyptic number.

It is an amenable number.

2301312021 is a deficient number, since it is larger than the sum of its proper divisors (778824363).

2301312021 is a wasteful number, since it uses less digits than its factorization.

2301312021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3220.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2301312021 is about 47971.9920474437. The cubic root of 2301312021 is about 1320.2570705703.

Adding to 2301312021 its reverse (1202131032), we get a palindrome (3503443053).

The spelling of 2301312021 in words is "two billion, three hundred one million, three hundred twelve thousand, twenty-one".