20411101 has 8 divisors (see below), whose sum is σ = 21727224. Its totient is φ = 19107840.

The previous prime is 20411093. The next prime is 20411107. The reversal of 20411101 is 10111402.

It can be written as a sum of positive squares in 4 ways, for example, as 251001 + 20160100 = 501^2 + 4490^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20411101 - 2³ = 20411093 is a prime.

It is a super-2 number, since 2×20411101² = 833226088064402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20411107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171 + ... + 6391.

It is an arithmetic number, because the mean of its divisors is an integer number (2715903).

Almost surely, 2^20411101 is an apocalyptic number.

It is an amenable number.

20411101 is a deficient number, since it is larger than the sum of its proper divisors (1316123).

20411101 is a wasteful number, since it uses less digits than its factorization.

20411101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6431.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 20411101 is about 4517.8646504737. The cubic root of 20411101 is about 273.2889952208.

Adding to 20411101 its reverse (10111402), we get a palindrome (30522503).

The spelling of 20411101 in words is "twenty million, four hundred eleven thousand, one hundred one".