2130211321 has 16 divisors (see below), whose sum is σ = 2470785408. Its totient is φ = 1798761600.

The previous prime is 2130211273. The next prime is 2130211361. The reversal of 2130211321 is 1231120312.

It is a cyclic number.

It is not a de Polignac number, because 2130211321 - 2¹⁵ = 2130178553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2130211295 and 2130211304.

It is not an unprimeable number, because it can be changed into a prime (2130211361) 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, 555591 + ... + 559411.

It is an arithmetic number, because the mean of its divisors is an integer number (154424088).

Almost surely, 2^2130211321 is an apocalyptic number.

It is an amenable number.

2130211321 is a deficient number, since it is larger than the sum of its proper divisors (340574087).

2130211321 is a wasteful number, since it uses less digits than its factorization.

2130211321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4992.

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

The square root of 2130211321 is about 46154.2123863034. The cubic root of 2130211321 is about 1286.6909000226.

Adding to 2130211321 its reverse (1231120312), we get a palindrome (3361331633).

It can be divided in two parts, 21302 and 11321, that added together give a palindrome (32623).

The spelling of 2130211321 in words is "two billion, one hundred thirty million, two hundred eleven thousand, three hundred twenty-one".