131044231 has 2 divisors, whose sum is σ = 131044232. Its totient is φ = 131044230.

The previous prime is 131044229. The next prime is 131044259. The reversal of 131044231 is 132440131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131044231 - 2¹ = 131044229 is a prime.

It is a super-2 number, since 2×131044231² = 34345180956762722, which contains 22 as substring.

Together with 131044229, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 131044199 and 131044208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131044031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65522115 + 65522116.

It is an arithmetic number, because the mean of its divisors is an integer number (65522116).

Almost surely, 2^131044231 is an apocalyptic number.

131044231 is a deficient number, since it is larger than the sum of its proper divisors (1).

131044231 is an equidigital number, since it uses as much as digits as its factorization.

131044231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 131044231 is about 11447.4552193926. The cubic root of 131044231 is about 507.9324612610.

Adding to 131044231 its reverse (132440131), we get a palindrome (263484362).

The spelling of 131044231 in words is "one hundred thirty-one million, forty-four thousand, two hundred thirty-one".