130031021009 has 4 divisors (see below), whose sum is σ = 131246264304. Its totient is φ = 128815777716.

The previous prime is 130031020957. The next prime is 130031021017. The reversal of 130031021009 is 900120130031.

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: 900120130031 = 17 ⋅52948242943.

It is a cyclic number.

It is not a de Polignac number, because 130031021009 - 2¹⁶ = 130030955473 is a prime.

It is a super-3 number, since 3×130031021009³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130031021089) 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, 607621487 + ... + 607621700.

It is an arithmetic number, because the mean of its divisors is an integer number (32811566076).

Almost surely, 2^130031021009 is an apocalyptic number.

It is an amenable number.

130031021009 is a deficient number, since it is larger than the sum of its proper divisors (1215243295).

130031021009 is a wasteful number, since it uses less digits than its factorization.

130031021009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215243294.

The product of its (nonzero) digits is 162, while the sum is 20.

The spelling of 130031021009 in words is "one hundred thirty billion, thirty-one million, twenty-one thousand, nine".