2111531330 has 16 divisors (see below), whose sum is σ = 3966007104. Its totient is φ = 807890160.

The previous prime is 2111531329. The next prime is 2111531333. The reversal of 2111531330 is 331351112.

It is not an unprimeable number, because it can be changed into a prime (2111531333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4590056 + ... + 4590515.

It is an arithmetic number, because the mean of its divisors is an integer number (247875444).

Almost surely, 2^2111531330 is an apocalyptic number.

2111531330 is a deficient number, since it is larger than the sum of its proper divisors (1854475774).

2111531330 is a wasteful number, since it uses less digits than its factorization.

2111531330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9180601.

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 2111531330 is about 45951.4018284535. The cubic root of 2111531330 is about 1282.9188212455.

Adding to 2111531330 its reverse (331351112), we get a palindrome (2442882442).

The spelling of 2111531330 in words is "two billion, one hundred eleven million, five hundred thirty-one thousand, three hundred thirty".