2301321010021 has 6 divisors (see below), whose sum is σ = 2529551192966. Its totient is φ = 2092110009000.

The previous prime is 2301321010019. The next prime is 2301321010097. The reversal of 2301321010021 is 1200101231032.

It can be written as a sum of positive squares in only one way, i.e., 2288521481796 + 12799528225 = 1512786^2 + 113135^2 .

It is not a de Polignac number, because 2301321010021 - 2¹ = 2301321010019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2301321009977 and 2301321010004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2301321010321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9509590830 + ... + 9509591071.

Almost surely, 2^{2301321010021} is an apocalyptic number.

It is an amenable number.

2301321010021 is a deficient number, since it is larger than the sum of its proper divisors (228230182945).

2301321010021 is a wasteful number, since it uses less digits than its factorization.

2301321010021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19019181923 (or 19019181912 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2301321010021 its reverse (1200101231032), we get a palindrome (3501422241053).

The spelling of 2301321010021 in words is "two trillion, three hundred one billion, three hundred twenty-one million, ten thousand, twenty-one".