20302130 has 8 divisors (see below), whose sum is σ = 36543852. Its totient is φ = 8120848.

The previous prime is 20302099. The next prime is 20302133. The reversal of 20302130 is 3120302.

It can be written as a sum of positive squares in 2 ways, for example, as 17732521 + 2569609 = 4211^2 + 1603^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20302133) 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, 1015097 + ... + 1015116.

Almost surely, 2^20302130 is an apocalyptic number.

20302130 is a deficient number, since it is larger than the sum of its proper divisors (16241722).

20302130 is a wasteful number, since it uses less digits than its factorization.

20302130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2030220.

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 20302130 is about 4505.7884992529. The cubic root of 20302130 is about 272.8017810905.

Adding to 20302130 its reverse (3120302), we get a palindrome (23422432).

The spelling of 20302130 in words is "twenty million, three hundred two thousand, one hundred thirty".