20011413 has 16 divisors (see below), whose sum is σ = 27621440. Its totient is φ = 12877056.

The previous prime is 20011373. The next prime is 20011423. The reversal of 20011413 is 31411002.

It is a happy number.

It is not a de Polignac number, because 20011413 - 2⁶ = 20011349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14781 + ... + 16077.

It is an arithmetic number, because the mean of its divisors is an integer number (1726340).

Almost surely, 2^20011413 is an apocalyptic number.

It is an amenable number.

20011413 is a deficient number, since it is larger than the sum of its proper divisors (7610027).

20011413 is a wasteful number, since it uses less digits than its factorization.

20011413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1476.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 20011413 is about 4473.4117852038. The cubic root of 20011413 is about 271.4933845883.

Adding to 20011413 its reverse (31411002), we get a palindrome (51422415).

The spelling of 20011413 in words is "twenty million, eleven thousand, four hundred thirteen".