2131131222311 has 16 divisors (see below), whose sum is σ = 2638451054400. Its totient is φ = 1686169746144.

The previous prime is 2131131222281. The next prime is 2131131222343. The reversal of 2131131222311 is 1132221311312.

It is a happy number.

It is not a de Polignac number, because 2131131222311 - 2⁶ = 2131131222247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131131222391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69271676 + ... + 69302433.

It is an arithmetic number, because the mean of its divisors is an integer number (164903190900).

Almost surely, 2^{2131131222311} is an apocalyptic number.

2131131222311 is a deficient number, since it is larger than the sum of its proper divisors (507319832089).

2131131222311 is an equidigital number, since it uses as much as digits as its factorization.

2131131222311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138574155 (or 138574129 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

Adding to 2131131222311 its reverse (1132221311312), we get a palindrome (3263352533623).

The spelling of 2131131222311 in words is "two trillion, one hundred thirty-one billion, one hundred thirty-one million, two hundred twenty-two thousand, three hundred eleven".