130031723 has 2 divisors, whose sum is σ = 130031724. Its totient is φ = 130031722.

The previous prime is 130031717. The next prime is 130031749. The reversal of 130031723 is 327130031.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130031723 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130031695 and 130031704.

It is not a weakly prime, because it can be changed into another prime (130031773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65015861 + 65015862.

It is an arithmetic number, because the mean of its divisors is an integer number (65015862).

Almost surely, 2^130031723 is an apocalyptic number.

130031723 is a deficient number, since it is larger than the sum of its proper divisors (1).

130031723 is an equidigital number, since it uses as much as digits as its factorization.

130031723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 378, while the sum is 20.

The square root of 130031723 is about 11403.1453117112. The cubic root of 130031723 is about 506.6209042714.

Adding to 130031723 its reverse (327130031), we get a palindrome (457161754).

The spelling of 130031723 in words is "one hundred thirty million, thirty-one thousand, seven hundred twenty-three".