20013010 has 16 divisors (see below), whose sum is σ = 36098136. Its totient is φ = 7988608.

The previous prime is 20012999. The next prime is 20013031. The reversal of 20013010 is 1031002.

It can be written as a sum of positive squares in 4 ways, for example, as 9728161 + 10284849 = 3119^2 + 3207^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20012984 and 20013002.

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, 3774 + ... + 7366.

Almost surely, 2^20013010 is an apocalyptic number.

20013010 is a deficient number, since it is larger than the sum of its proper divisors (16085126).

20013010 is a wasteful number, since it uses less digits than its factorization.

20013010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4157.

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

The square root of 20013010 is about 4473.5902807477. The cubic root of 20013010 is about 271.5006065238.

Adding to 20013010 its reverse (1031002), we get a palindrome (21044012).

The spelling of 20013010 in words is "twenty million, thirteen thousand, ten".