20135101 has 4 divisors (see below), whose sum is σ = 23011552. Its totient is φ = 17258652.

The previous prime is 20135099. The next prime is 20135113. The reversal of 20135101 is 10153102.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10153102 = 2 ⋅5076551.

It is a cyclic number.

It is not a de Polignac number, because 20135101 - 2¹ = 20135099 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 (20135501) 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, 1438215 + ... + 1438228.

It is an arithmetic number, because the mean of its divisors is an integer number (5752888).

Almost surely, 2^20135101 is an apocalyptic number.

It is an amenable number.

20135101 is a deficient number, since it is larger than the sum of its proper divisors (2876451).

20135101 is an equidigital number, since it uses as much as digits as its factorization.

20135101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2876450.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 20135101 is about 4487.2152834470. The cubic root of 20135101 is about 272.0515914609.

Adding to 20135101 its reverse (10153102), we get a palindrome (30288203).

The spelling of 20135101 in words is "twenty million, one hundred thirty-five thousand, one hundred one".