20365101 has 24 divisors (see below), whose sum is σ = 31231200. Its totient is φ = 13254192.

The previous prime is 20365049. The next prime is 20365117. The reversal of 20365101 is 10156302.

It is not a de Polignac number, because 20365101 - 2¹⁰ = 20364077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20365141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9475 + ... + 11423.

It is an arithmetic number, because the mean of its divisors is an integer number (1301300).

Almost surely, 2^20365101 is an apocalyptic number.

It is an amenable number.

20365101 is a deficient number, since it is larger than the sum of its proper divisors (10866099).

20365101 is an equidigital number, since it uses as much as digits as its factorization.

20365101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2007 (or 1995 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 20365101 is about 4512.7708782964. The cubic root of 20365101 is about 273.0835392209.

The spelling of 20365101 in words is "twenty million, three hundred sixty-five thousand, one hundred one".