2131131202201 has 6 divisors (see below), whose sum is σ = 2263866017870. Its totient is φ = 2005770542976.

The previous prime is 2131131202183. The next prime is 2131131202231. The reversal of 2131131202201 is 1022021311312.

It can be written as a sum of positive squares in 3 ways, for example, as 1651019406400 + 480111795801 = 1284920^2 + 692901^2 .

It is not a de Polignac number, because 2131131202201 - 2¹⁷ = 2131131071129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131131202231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3687077916 + ... + 3687078493.

Almost surely, 2^{2131131202201} is an apocalyptic number.

It is an amenable number.

2131131202201 is a deficient number, since it is larger than the sum of its proper divisors (132734815669).

2131131202201 is an equidigital number, since it uses as much as digits as its factorization.

2131131202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7374156443 (or 7374156426 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2131131202201 its reverse (1022021311312), we get a palindrome (3153152513513).

It can be divided in two parts, 2131131 and 202201, that added together give a palindrome (2333332).

The spelling of 2131131202201 in words is "two trillion, one hundred thirty-one billion, one hundred thirty-one million, two hundred two thousand, two hundred one".