131021344311 has 32 divisors (see below), whose sum is σ = 205977343488. Its totient is φ = 73033971840.

The previous prime is 131021344297. The next prime is 131021344331. The reversal of 131021344311 is 113443120131.

It is a happy number.

It is not a de Polignac number, because 131021344311 - 2⁷ = 131021344183 is a prime.

It is a super-2 number, since 2×131021344311² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131021344331) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432451 + ... + 670116.

It is an arithmetic number, because the mean of its divisors is an integer number (6436791984).

Almost surely, 2^131021344311 is an apocalyptic number.

131021344311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131021344311 is a deficient number, since it is larger than the sum of its proper divisors (74955999177).

131021344311 is a wasteful number, since it uses less digits than its factorization.

131021344311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102871.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 131021344311 its reverse (113443120131), we get a palindrome (244464464442).

The spelling of 131021344311 in words is "one hundred thirty-one billion, twenty-one million, three hundred forty-four thousand, three hundred eleven".