20100130 has 16 divisors (see below), whose sum is σ = 36245880. Its totient is φ = 8025472.

The previous prime is 20100097. The next prime is 20100149. The reversal of 20100130 is 3100102.

It can be written as a sum of positive squares in 4 ways, for example, as 16088121 + 4012009 = 4011^2 + 2003^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5286 + ... + 8254.

Almost surely, 2^20100130 is an apocalyptic number.

20100130 is a deficient number, since it is larger than the sum of its proper divisors (16145750).

20100130 is a wasteful number, since it uses less digits than its factorization.

20100130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3653.

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 20100130 is about 4483.3168525100. The cubic root of 20100130 is about 271.8939988485.

Adding to 20100130 its reverse (3100102), we get a palindrome (23200232).

The spelling of 20100130 in words is "twenty million, one hundred thousand, one hundred thirty".