131233723 has 2 divisors, whose sum is σ = 131233724. Its totient is φ = 131233722.

The previous prime is 131233673. The next prime is 131233747. The reversal of 131233723 is 327332131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131233723 - 2⁹ = 131233211 is a prime.

It is not a weakly prime, because it can be changed into another prime (131233763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65616861 + 65616862.

It is an arithmetic number, because the mean of its divisors is an integer number (65616862).

Almost surely, 2^131233723 is an apocalyptic number.

131233723 is a deficient number, since it is larger than the sum of its proper divisors (1).

131233723 is an equidigital number, since it uses as much as digits as its factorization.

131233723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 25.

The square root of 131233723 is about 11455.7288288437. The cubic root of 131233723 is about 508.1771694329.

Adding to 131233723 its reverse (327332131), we get a palindrome (458565854).

The spelling of 131233723 in words is "one hundred thirty-one million, two hundred thirty-three thousand, seven hundred twenty-three".