131143112123231 has 8 divisors (see below), whose sum is σ = 145048099064064. Its totient is φ = 117783418788000.

The previous prime is 131143112123189. The next prime is 131143112123267. The reversal of 131143112123231 is 132321211341131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131143112123231 - 2³⁸ = 130868234216287 is a prime.

It is a super-2 number, since 2×131143112123231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131143112123194 and 131143112123203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131143112123731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136323400895 + ... + 136323401856.

It is an arithmetic number, because the mean of its divisors is an integer number (18131012383008).

Almost surely, 2^{131143112123231} is an apocalyptic number.

131143112123231 is a deficient number, since it is larger than the sum of its proper divisors (13904986940833).

131143112123231 is a wasteful number, since it uses less digits than its factorization.

131143112123231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272646802801.

The product of its digits is 2592, while the sum is 29.

Adding to 131143112123231 its reverse (132321211341131), we get a palindrome (263464323464362).

The spelling of 131143112123231 in words is "one hundred thirty-one trillion, one hundred forty-three billion, one hundred twelve million, one hundred twenty-three thousand, two hundred thirty-one".