20013101 has 8 divisors (see below), whose sum is σ = 20403264. Its totient is φ = 19625760.

The previous prime is 20013083. The next prime is 20013107. The reversal of 20013101 is 10131002.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20013101 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 (20013107) 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, 18296 + ... + 19358.

It is an arithmetic number, because the mean of its divisors is an integer number (2550408).

Almost surely, 2^20013101 is an apocalyptic number.

It is an amenable number.

20013101 is a deficient number, since it is larger than the sum of its proper divisors (390163).

20013101 is a wasteful number, since it uses less digits than its factorization.

20013101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411.

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

The square root of 20013101 is about 4473.6004515379. The cubic root of 20013101 is about 271.5010180314.

Adding to 20013101 its reverse (10131002), we get a palindrome (30144103).

The spelling of 20013101 in words is "twenty million, thirteen thousand, one hundred one".