131333120230231 has 2 divisors, whose sum is σ = 131333120230232. Its totient is φ = 131333120230230.

The previous prime is 131333120230223. The next prime is 131333120230243. The reversal of 131333120230231 is 132032021333131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131333120230231 - 2³ = 131333120230223 is a prime.

It is a super-2 number, since 2×131333120230231² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131333120230231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131333120230831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65666560115115 + 65666560115116.

It is an arithmetic number, because the mean of its divisors is an integer number (65666560115116).

Almost surely, 2^{131333120230231} is an apocalyptic number.

131333120230231 is a deficient number, since it is larger than the sum of its proper divisors (1).

131333120230231 is an equidigital number, since it uses as much as digits as its factorization.

131333120230231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 131333120230231 its reverse (132032021333131), we get a palindrome (263365141563362).

The spelling of 131333120230231 in words is "one hundred thirty-one trillion, three hundred thirty-three billion, one hundred twenty million, two hundred thirty thousand, two hundred thirty-one".