131123323 has 2 divisors, whose sum is σ = 131123324. Its totient is φ = 131123322.

The previous prime is 131123269. The next prime is 131123327. The reversal of 131123323 is 323321131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131123323 is a prime.

It is a super-3 number, since 3×131123323³ (a number of 25 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131123323.

It is not a weakly prime, because it can be changed into another prime (131123327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65561661 + 65561662.

It is an arithmetic number, because the mean of its divisors is an integer number (65561662).

Almost surely, 2^131123323 is an apocalyptic number.

131123323 is a deficient number, since it is larger than the sum of its proper divisors (1).

131123323 is an equidigital number, since it uses as much as digits as its factorization.

131123323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 19.

The square root of 131123323 is about 11450.9092652068. The cubic root of 131123323 is about 508.0346285837.

Adding to 131123323 its reverse (323321131), we get a palindrome (454444454).

The spelling of 131123323 in words is "one hundred thirty-one million, one hundred twenty-three thousand, three hundred twenty-three".