2201312131 has 4 divisors (see below), whose sum is σ = 2209146264. Its totient is φ = 2193478000.

The previous prime is 2201312117. The next prime is 2201312147. The reversal of 2201312131 is 1312131022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1312131022 = 2 ⋅656065511.

It is a cyclic number.

It is not a de Polignac number, because 2201312131 - 2¹⁹ = 2200787843 is a prime.

It is a super-2 number, since 2×2201312131² = 9691550196175522322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2201312101) 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, 3916645 + ... + 3917206.

It is an arithmetic number, because the mean of its divisors is an integer number (552286566).

Almost surely, 2^2201312131 is an apocalyptic number.

2201312131 is a deficient number, since it is larger than the sum of its proper divisors (7834133).

2201312131 is an equidigital number, since it uses as much as digits as its factorization.

2201312131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7834132.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2201312131 is about 46918.1428767167. The cubic root of 2201312131 is about 1300.8499630928.

Adding to 2201312131 its reverse (1312131022), we get a palindrome (3513443153).

The spelling of 2201312131 in words is "two billion, two hundred one million, three hundred twelve thousand, one hundred thirty-one".