130123001309 has 4 divisors (see below), whose sum is σ = 148712001504. Its totient is φ = 111534001116.

The previous prime is 130123001303. The next prime is 130123001347. The reversal of 130123001309 is 903100321031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 903100321031 = 26669 ⋅33863299.

It is a cyclic number.

It is not a de Polignac number, because 130123001309 - 2³⁶ = 61403524573 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130123001303) 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, 9294500087 + ... + 9294500100.

It is an arithmetic number, because the mean of its divisors is an integer number (37178000376).

Almost surely, 2^130123001309 is an apocalyptic number.

It is an amenable number.

130123001309 is a deficient number, since it is larger than the sum of its proper divisors (18589000195).

130123001309 is an equidigital number, since it uses as much as digits as its factorization.

130123001309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18589000194.

The product of its (nonzero) digits is 486, while the sum is 23.

The spelling of 130123001309 in words is "one hundred thirty billion, one hundred twenty-three million, one thousand, three hundred nine".