20135326201 has 15 divisors (see below), whose sum is σ = 21437429593. Its totient is φ = 18912298720.

The previous prime is 20135326163. The next prime is 20135326217. The reversal of 20135326201 is 10262353102.

The square root of 20135326201 is 141899.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 6249060601 + 13886265600 = 79051^2 + 117840^2 .

It is not a de Polignac number, because 20135326201 - 2⁷ = 20135326073 is a prime.

It is a super-2 number, since 2×20135326201² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20135326231) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 41008566 + ... + 41009056.

Almost surely, 2^20135326201 is an apocalyptic number.

20135326201 is the 141899-th square number.

20135326201 is the 70950-th centered octagonal number.

It is an amenable number.

20135326201 is a deficient number, since it is larger than the sum of its proper divisors (1302103392).

20135326201 is an frugal number, since it uses more digits than its factorization.

20135326201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1050 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Multiplying 20135326201 by its sum of digits (25), we get a square (503383155025 = 709495²).

Adding to 20135326201 its reverse (10262353102), we get a palindrome (30397679303).

The spelling of 20135326201 in words is "twenty billion, one hundred thirty-five million, three hundred twenty-six thousand, two hundred one".