20020130 has 16 divisors (see below), whose sum is σ = 38808504. Its totient is φ = 7392000.

The previous prime is 20020109. The next prime is 20020151. The reversal of 20020130 is 3102002.

It is an interprime number because it is at equal distance from previous prime (20020109) and next prime (20020151).

It can be written as a sum of positive squares in 4 ways, for example, as 16056049 + 3964081 = 4007^2 + 1991^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76871 + ... + 77130.

Almost surely, 2^20020130 is an apocalyptic number.

20020130 is a deficient number, since it is larger than the sum of its proper divisors (18788374).

20020130 is a wasteful number, since it uses less digits than its factorization.

20020130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154021.

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

The square root of 20020130 is about 4474.3859913959. The cubic root of 20020130 is about 271.5327998340.

Adding to 20020130 its reverse (3102002), we get a palindrome (23122132).

The spelling of 20020130 in words is "twenty million, twenty thousand, one hundred thirty".