130123013 has 4 divisors (see below), whose sum is σ = 130951980. Its totient is φ = 129294048.

The previous prime is 130123009. The next prime is 130123061. The reversal of 130123013 is 310321031.

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

It can be written as a sum of positive squares in 2 ways, for example, as 37540129 + 92582884 = 6127^2 + 9622^2 .

It is a cyclic number.

It is not a de Polignac number, because 130123013 - 2² = 130123009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130123813) 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 in 3 ways as a sum of consecutive naturals, for example, 414248 + ... + 414561.

It is an arithmetic number, because the mean of its divisors is an integer number (32737995).

Almost surely, 2^130123013 is an apocalyptic number.

It is an amenable number.

130123013 is a deficient number, since it is larger than the sum of its proper divisors (828967).

130123013 is an equidigital number, since it uses as much as digits as its factorization.

130123013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828966.

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

The square root of 130123013 is about 11407.1474523651. The cubic root of 130123013 is about 506.7394358682.

Adding to 130123013 its reverse (310321031), we get a palindrome (440444044).

The spelling of 130123013 in words is "one hundred thirty million, one hundred twenty-three thousand, thirteen".