131243241223 has 2 divisors, whose sum is σ = 131243241224. Its totient is φ = 131243241222.

The previous prime is 131243241191. The next prime is 131243241289. The reversal of 131243241223 is 322142342131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131243241223 - 2⁵ = 131243241191 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131243241191 and 131243241200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131243248223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65621620611 + 65621620612.

It is an arithmetic number, because the mean of its divisors is an integer number (65621620612).

Almost surely, 2^131243241223 is an apocalyptic number.

131243241223 is a deficient number, since it is larger than the sum of its proper divisors (1).

131243241223 is an equidigital number, since it uses as much as digits as its factorization.

131243241223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 28.

Adding to 131243241223 its reverse (322142342131), we get a palindrome (453385583354).

The spelling of 131243241223 in words is "one hundred thirty-one billion, two hundred forty-three million, two hundred forty-one thousand, two hundred twenty-three".