2301504021 has 12 divisors (see below), whose sum is σ = 3326469120. Its totient is φ = 1533378600.

The previous prime is 2301504019. The next prime is 2301504157. The reversal of 2301504021 is 1204051032.

It is not a de Polignac number, because 2301504021 - 2¹ = 2301504019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2301503985 and 2301504003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2301504001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64405 + ... + 93546.

It is an arithmetic number, because the mean of its divisors is an integer number (277205760).

Almost surely, 2^2301504021 is an apocalyptic number.

It is an amenable number.

2301504021 is a deficient number, since it is larger than the sum of its proper divisors (1024965099).

2301504021 is a wasteful number, since it uses less digits than its factorization.

2301504021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159576 (or 159573 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2301504021 is about 47973.9931733851. The cubic root of 2301504021 is about 1320.2937861926.

Adding to 2301504021 its reverse (1204051032), we get a palindrome (3505555053).

The spelling of 2301504021 in words is "two billion, three hundred one million, five hundred four thousand, twenty-one".