130123501 has 2 divisors, whose sum is σ = 130123502. Its totient is φ = 130123500.

The previous prime is 130123471. The next prime is 130123529. The reversal of 130123501 is 105321031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93508900 + 36614601 = 9670^2 + 6051^2 .

It is a cyclic number.

It is not a de Polignac number, because 130123501 - 2⁹ = 130122989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130123601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65061750 + 65061751.

It is an arithmetic number, because the mean of its divisors is an integer number (65061751).

Almost surely, 2^130123501 is an apocalyptic number.

It is an amenable number.

130123501 is a deficient number, since it is larger than the sum of its proper divisors (1).

130123501 is an equidigital number, since it uses as much as digits as its factorization.

130123501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 130123501 is about 11407.1688424429. The cubic root of 130123501 is about 506.7400693419.

Adding to 130123501 its reverse (105321031), we get a palindrome (235444532).

The spelling of 130123501 in words is "one hundred thirty million, one hundred twenty-three thousand, five hundred one".