2320212521 has 4 divisors (see below), whose sum is σ = 2531140944. Its totient is φ = 2109284100.

The previous prime is 2320212511. The next prime is 2320212527. The reversal of 2320212521 is 1252120232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2320212521 - 2²² = 2316018217 is a prime.

It is a super-2 number, since 2×2320212521² = 10766772285210350882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2320212493 and 2320212502.

It is not an unprimeable number, because it can be changed into a prime (2320212527) 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 3 ways as a sum of consecutive naturals, for example, 105464195 + ... + 105464216.

It is an arithmetic number, because the mean of its divisors is an integer number (632785236).

Almost surely, 2^2320212521 is an apocalyptic number.

It is an amenable number.

2320212521 is a deficient number, since it is larger than the sum of its proper divisors (210928423).

2320212521 is a wasteful number, since it uses less digits than its factorization.

2320212521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210928422.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2320212521 is about 48168.5843782024. The cubic root of 2320212521 is about 1323.8616107565.

Adding to 2320212521 its reverse (1252120232), we get a palindrome (3572332753).

The spelling of 2320212521 in words is "two billion, three hundred twenty million, two hundred twelve thousand, five hundred twenty-one".