2321152521 has 32 divisors (see below), whose sum is σ = 3170549760. Its totient is φ = 1510272000.

The previous prime is 2321152441. The next prime is 2321152523. The reversal of 2321152521 is 1252511232.

It is not a de Polignac number, because 2321152521 - 2¹¹ = 2321150473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2321152491 and 2321152500.

It is not an unprimeable number, because it can be changed into a prime (2321152523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12026601 + ... + 12026793.

It is an arithmetic number, because the mean of its divisors is an integer number (99079680).

Almost surely, 2^2321152521 is an apocalyptic number.

It is an amenable number.

2321152521 is a deficient number, since it is larger than the sum of its proper divisors (849397239).

2321152521 is a wasteful number, since it uses less digits than its factorization.

2321152521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677.

The product of its digits is 1200, while the sum is 24.

The square root of 2321152521 is about 48178.3407871213. The cubic root of 2321152521 is about 1324.0403676429.

Adding to 2321152521 its reverse (1252511232), we get a palindrome (3573663753).

The spelling of 2321152521 in words is "two billion, three hundred twenty-one million, one hundred fifty-two thousand, five hundred twenty-one".