20110130 has 16 divisors (see below), whose sum is σ = 36431640. Its totient is φ = 7992192.

The previous prime is 20110109. The next prime is 20110141. The reversal of 20110130 is 3101102.

It can be written as a sum of positive squares in 4 ways, for example, as 12453841 + 7656289 = 3529^2 + 2767^2 .

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, 4835 + ... + 7974.

Almost surely, 2^20110130 is an apocalyptic number.

20110130 is a deficient number, since it is larger than the sum of its proper divisors (16321510).

20110130 is a wasteful number, since it uses less digits than its factorization.

20110130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12973.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 20110130 is about 4484.4319595686. The cubic root of 20110130 is about 271.9390812968.

Adding to 20110130 its reverse (3101102), we get a palindrome (23211232).

Subtracting from 20110130 its reverse (3101102), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 20110130 in words is "twenty million, one hundred ten thousand, one hundred thirty".