130031321 has 8 divisors (see below), whose sum is σ = 151043904. Its totient is φ = 109627920.

The previous prime is 130031311. The next prime is 130031327. The reversal of 130031321 is 123130031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 130031321 - 2²² = 125837017 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 130031296 and 130031305.

It is not an unprimeable number, because it can be changed into a prime (130031327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151835 + ... + 152688.

It is an arithmetic number, because the mean of its divisors is an integer number (18880488).

Almost surely, 2^130031321 is an apocalyptic number.

It is an amenable number.

130031321 is a deficient number, since it is larger than the sum of its proper divisors (21012583).

130031321 is an equidigital number, since it uses as much as digits as its factorization.

130031321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304591.

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

The square root of 130031321 is about 11403.1276849819. The cubic root of 130031321 is about 506.6203821890.

Adding to 130031321 its reverse (123130031), we get a palindrome (253161352).

The spelling of 130031321 in words is "one hundred thirty million, thirty-one thousand, three hundred twenty-one".