131011243022231 has 32 divisors (see below), whose sum is σ = 156368478260736. Its totient is φ = 108192900816000.

The previous prime is 131011243022227. The next prime is 131011243022249. The reversal of 131011243022231 is 132220342110131.

It is not a de Polignac number, because 131011243022231 - 2² = 131011243022227 is a prime.

It is a super-2 number, since 2×131011243022231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131011243022231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131011243022201) 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, 6241280 + ... + 17348661.

It is an arithmetic number, because the mean of its divisors is an integer number (4886514945648).

Almost surely, 2^{131011243022231} is an apocalyptic number.

131011243022231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131011243022231 is a deficient number, since it is larger than the sum of its proper divisors (25357235238505).

131011243022231 is a wasteful number, since it uses less digits than its factorization.

131011243022231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23590583.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 131011243022231 its reverse (132220342110131), we get a palindrome (263231585132362).

The spelling of 131011243022231 in words is "one hundred thirty-one trillion, eleven billion, two hundred forty-three million, twenty-two thousand, two hundred thirty-one".