2153210330 has 32 divisors (see below), whose sum is σ = 4013702928. Its totient is φ = 831168000.

The previous prime is 2153210329. The next prime is 2153210347. The reversal of 2153210330 is 330123512.

It can be written as a sum of positive squares in 8 ways, for example, as 861598609 + 1291611721 = 29353^2 + 35939^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 971 + ... + 65630.

Almost surely, 2^2153210330 is an apocalyptic number.

2153210330 is a deficient number, since it is larger than the sum of its proper divisors (1860492598).

2153210330 is a wasteful number, since it uses less digits than its factorization.

2153210330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66722.

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

The square root of 2153210330 is about 46402.6974431444. The cubic root of 2153210330 is about 1291.3049571348.

Adding to 2153210330 its reverse (330123512), we get a palindrome (2483333842).

The spelling of 2153210330 in words is "two billion, one hundred fifty-three million, two hundred ten thousand, three hundred thirty".