201133331131 has 4 divisors (see below), whose sum is σ = 201134241000. Its totient is φ = 201132421264.

The previous prime is 201133331129. The next prime is 201133331177. The reversal of 201133331131 is 131133331102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 201133331131 - 2¹ = 201133331129 is a prime.

It is a super-2 number, since 2×201133331131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201133331831) 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, 112920 + ... + 644218.

It is an arithmetic number, because the mean of its divisors is an integer number (50283560250).

Almost surely, 2^201133331131 is an apocalyptic number.

201133331131 is a deficient number, since it is larger than the sum of its proper divisors (909869).

201133331131 is an equidigital number, since it uses as much as digits as its factorization.

201133331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909868.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 201133331131 its reverse (131133331102), we get a palindrome (332266662233).

The spelling of 201133331131 in words is "two hundred one billion, one hundred thirty-three million, three hundred thirty-one thousand, one hundred thirty-one".