20002130 has 32 divisors (see below), whose sum is σ = 37559808. Its totient is φ = 7660800.

The previous prime is 20002123. The next prime is 20002133. The reversal of 20002130 is 3120002.

It is not an unprimeable number, because it can be changed into a prime (20002133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34745 + ... + 35315.

It is an arithmetic number, because the mean of its divisors is an integer number (1173744).

Almost surely, 2^20002130 is an apocalyptic number.

20002130 is a deficient number, since it is larger than the sum of its proper divisors (17557678).

20002130 is a wasteful number, since it uses less digits than its factorization.

20002130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722.

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 20002130 is about 4472.3740898990. The cubic root of 20002130 is about 271.4513975000.

Adding to 20002130 its reverse (3120002), we get a palindrome (23122132).

The spelling of 20002130 in words is "twenty million, two thousand, one hundred thirty".