130315123 has 2 divisors, whose sum is σ = 130315124. Its totient is φ = 130315122.

The previous prime is 130315121. The next prime is 130315139. The reversal of 130315123 is 321513031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130315123 - 2¹ = 130315121 is a prime.

Together with 130315121, 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 130315123.

It is not a weakly prime, because it can be changed into another prime (130315121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65157561 + 65157562.

It is an arithmetic number, because the mean of its divisors is an integer number (65157562).

Almost surely, 2^130315123 is an apocalyptic number.

130315123 is a deficient number, since it is larger than the sum of its proper divisors (1).

130315123 is an equidigital number, since it uses as much as digits as its factorization.

130315123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 130315123 is about 11415.5649444081. The cubic root of 130315123 is about 506.9886919167.

Adding to 130315123 its reverse (321513031), we get a palindrome (451828154).

The spelling of 130315123 in words is "one hundred thirty million, three hundred fifteen thousand, one hundred twenty-three".