2135030321 has 4 divisors (see below), whose sum is σ = 2144604672. Its totient is φ = 2125455972.

The previous prime is 2135030299. The next prime is 2135030329. The reversal of 2135030321 is 1230305312.

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 a cyclic number.

It is not a de Polignac number, because 2135030321 - 2¹⁸ = 2134768177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2135030293 and 2135030302.

It is not an unprimeable number, because it can be changed into a prime (2135030329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4786841 + ... + 4787286.

It is an arithmetic number, because the mean of its divisors is an integer number (536151168).

Almost surely, 2^2135030321 is an apocalyptic number.

It is an amenable number.

2135030321 is a deficient number, since it is larger than the sum of its proper divisors (9574351).

2135030321 is an equidigital number, since it uses as much as digits as its factorization.

2135030321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9574350.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 2135030321 is about 46206.3883137386. The cubic root of 2135030321 is about 1287.6604272522.

Adding to 2135030321 its reverse (1230305312), we get a palindrome (3365335633).

The spelling of 2135030321 in words is "two billion, one hundred thirty-five million, thirty thousand, three hundred twenty-one".