131066231 has 2 divisors, whose sum is σ = 131066232. Its totient is φ = 131066230.

The previous prime is 131066227. The next prime is 131066249. The reversal of 131066231 is 132660131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131066231 - 2² = 131066227 is a prime.

It is a super-2 number, since 2×131066231² = 34356713817090722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131066197 and 131066206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131066251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65533115 + 65533116.

It is an arithmetic number, because the mean of its divisors is an integer number (65533116).

Almost surely, 2^131066231 is an apocalyptic number.

131066231 is a deficient number, since it is larger than the sum of its proper divisors (1).

131066231 is an equidigital number, since it uses as much as digits as its factorization.

131066231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 131066231 is about 11448.4160913202. The cubic root of 131066231 is about 507.9608839516.

The spelling of 131066231 in words is "one hundred thirty-one million, sixty-six thousand, two hundred thirty-one".