130013123 has 4 divisors (see below), whose sum is σ = 133036728. Its totient is φ = 126989520.

The previous prime is 130013087. The next prime is 130013131. The reversal of 130013123 is 321310031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130013123 - 2⁸ = 130012867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130013098 and 130013107.

It is not an unprimeable number, because it can be changed into a prime (130003123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1511738 + ... + 1511823.

It is an arithmetic number, because the mean of its divisors is an integer number (33259182).

Almost surely, 2^130013123 is an apocalyptic number.

130013123 is a deficient number, since it is larger than the sum of its proper divisors (3023605).

130013123 is an equidigital number, since it uses as much as digits as its factorization.

130013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3023604.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 130013123 is about 11402.3297180883. The cubic root of 130013123 is about 506.5967470941.

Adding to 130013123 its reverse (321310031), we get a palindrome (451323154).

The spelling of 130013123 in words is "one hundred thirty million, thirteen thousand, one hundred twenty-three".