131222323 has 2 divisors, whose sum is σ = 131222324. Its totient is φ = 131222322.

The previous prime is 131222321. The next prime is 131222353. The reversal of 131222323 is 323222131.

It is a weak prime.

It is an emirp because it is prime and its reverse (323222131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131222323 - 2¹ = 131222321 is a prime.

Together with 131222321, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 131222323.

It is not a weakly prime, because it can be changed into another prime (131222321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65611161 + 65611162.

It is an arithmetic number, because the mean of its divisors is an integer number (65611162).

Almost surely, 2^131222323 is an apocalyptic number.

131222323 is a deficient number, since it is larger than the sum of its proper divisors (1).

131222323 is an equidigital number, since it uses as much as digits as its factorization.

131222323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 19.

The square root of 131222323 is about 11455.2312503939. The cubic root of 131222323 is about 508.1624542429.

Adding to 131222323 its reverse (323222131), we get a palindrome (454444454).

The spelling of 131222323 in words is "one hundred thirty-one million, two hundred twenty-two thousand, three hundred twenty-three".