2115034321 has 2 divisors, whose sum is σ = 2115034322. Its totient is φ = 2115034320.

The previous prime is 2115034319. The next prime is 2115034349. The reversal of 2115034321 is 1234305112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1767025296 + 348009025 = 42036^2 + 18655^2 .

It is a cyclic number.

It is not a de Polignac number, because 2115034321 - 2¹ = 2115034319 is a prime.

Together with 2115034319, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 2115034292 and 2115034301.

It is not a weakly prime, because it can be changed into another prime (2115034721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057517160 + 1057517161.

It is an arithmetic number, because the mean of its divisors is an integer number (1057517161).

Almost surely, 2^2115034321 is an apocalyptic number.

It is an amenable number.

2115034321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115034321 is an equidigital number, since it uses as much as digits as its factorization.

2115034321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2115034321 is about 45989.5022912838. The cubic root of 2115034321 is about 1283.6278754006.

Adding to 2115034321 its reverse (1234305112), we get a palindrome (3349339433).

The spelling of 2115034321 in words is "two billion, one hundred fifteen million, thirty-four thousand, three hundred twenty-one".