131230223101 has 2 divisors, whose sum is σ = 131230223102. Its totient is φ = 131230223100.

The previous prime is 131230223083. The next prime is 131230223221. The reversal of 131230223101 is 101322032131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126238800601 + 4991422500 = 355301^2 + 70650^2 .

It is a cyclic number.

It is not a de Polignac number, because 131230223101 - 2⁷ = 131230222973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131230220101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65615111550 + 65615111551.

It is an arithmetic number, because the mean of its divisors is an integer number (65615111551).

Almost surely, 2^131230223101 is an apocalyptic number.

It is an amenable number.

131230223101 is a deficient number, since it is larger than the sum of its proper divisors (1).

131230223101 is an equidigital number, since it uses as much as digits as its factorization.

131230223101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131230223101 its reverse (101322032131), we get a palindrome (232552255232).

The spelling of 131230223101 in words is "one hundred thirty-one billion, two hundred thirty million, two hundred twenty-three thousand, one hundred one".