130312002321 has 6 divisors (see below), whose sum is σ = 188228447810. Its totient is φ = 86874668208.

The previous prime is 130312002281. The next prime is 130312002323. The reversal of 130312002321 is 123200213031.

130312002321 is a `hidden beast` number, since 1 + 30 + 312 + 0 + 0 + 2 + 321 = 666.

It can be written as a sum of positive squares in only one way, i.e., 70514147025 + 59797855296 = 265545^2 + 244536^2 .

It is not a de Polignac number, because 130312002321 - 2¹⁵ = 130311969553 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130312002294 and 130312002303.

It is not an unprimeable number, because it can be changed into a prime (130312002323) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7239555676 + ... + 7239555693.

Almost surely, 2^130312002321 is an apocalyptic number.

It is an amenable number.

130312002321 is a deficient number, since it is larger than the sum of its proper divisors (57916445489).

130312002321 is a wasteful number, since it uses less digits than its factorization.

130312002321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14479111375 (or 14479111372 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 130312002321 its reverse (123200213031), we get a palindrome (253512215352).

The spelling of 130312002321 in words is "one hundred thirty billion, three hundred twelve million, two thousand, three hundred twenty-one".