20307101 has 4 divisors (see below), whose sum is σ = 20330304. Its totient is φ = 20283900.

The previous prime is 20307071. The next prime is 20307103. The reversal of 20307101 is 10170302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20307101 - 2⁶ = 20307037 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 (20307103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10235 + ... + 12056.

It is an arithmetic number, because the mean of its divisors is an integer number (5082576).

Almost surely, 2^20307101 is an apocalyptic number.

It is an amenable number.

20307101 is a deficient number, since it is larger than the sum of its proper divisors (23203).

20307101 is an equidigital number, since it uses as much as digits as its factorization.

20307101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23202.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 20307101 is about 4506.3400892520. The cubic root of 20307101 is about 272.8240445506.

Adding to 20307101 its reverse (10170302), we get a palindrome (30477403).

The spelling of 20307101 in words is "twenty million, three hundred seven thousand, one hundred one".