201020131 has 8 divisors (see below), whose sum is σ = 217864304. Its totient is φ = 184373280.

The previous prime is 201020129. The next prime is 201020147. The reversal of 201020131 is 131020102.

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

It is not a de Polignac number, because 201020131 - 2¹ = 201020129 is a prime.

It is a super-2 number, since 2×201020131² = 80818186134514322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201020101) 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, 47205 + ... + 51286.

It is an arithmetic number, because the mean of its divisors is an integer number (27233038).

Almost surely, 2^201020131 is an apocalyptic number.

201020131 is a deficient number, since it is larger than the sum of its proper divisors (16844173).

201020131 is a wasteful number, since it uses less digits than its factorization.

201020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98661.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 201020131 is about 14178.1568266118. The cubic root of 201020131 is about 585.7961556135.

Adding to 201020131 its reverse (131020102), we get a palindrome (332040233).

The spelling of 201020131 in words is "two hundred one million, twenty thousand, one hundred thirty-one".