201100131 has 16 divisors (see below), whose sum is σ = 307537920. Its totient is φ = 129741480.

The previous prime is 201100129. The next prime is 201100147. The reversal of 201100131 is 131001102.

It is not a de Polignac number, because 201100131 - 2¹ = 201100129 is a prime.

It is a super-2 number, since 2×201100131² = 80882525376434322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (201100831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119295 + ... + 120968.

It is an arithmetic number, because the mean of its divisors is an integer number (19221120).

Almost surely, 2^201100131 is an apocalyptic number.

201100131 is a deficient number, since it is larger than the sum of its proper divisors (106437789).

201100131 is a wasteful number, since it uses less digits than its factorization.

201100131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240303 (or 240297 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 201100131 is about 14180.9777871626. The cubic root of 201100131 is about 585.8738550903.

Adding to 201100131 its reverse (131001102), we get a palindrome (332101233).

The spelling of 201100131 in words is "two hundred one million, one hundred thousand, one hundred thirty-one".