30210131321 has 2 divisors, whose sum is σ = 30210131322. Its totient is φ = 30210131320.

The previous prime is 30210131269. The next prime is 30210131323. The reversal of 30210131321 is 12313101203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16941625600 + 13268505721 = 130160^2 + 115189^2 .

It is a cyclic number.

It is not a de Polignac number, because 30210131321 - 2²⁶ = 30143022457 is a prime.

Together with 30210131323, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30210131321.

It is not a weakly prime, because it can be changed into another prime (30210131323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15105065660 + 15105065661.

It is an arithmetic number, because the mean of its divisors is an integer number (15105065661).

Almost surely, 2^30210131321 is an apocalyptic number.

It is an amenable number.

30210131321 is a deficient number, since it is larger than the sum of its proper divisors (1).

30210131321 is an equidigital number, since it uses as much as digits as its factorization.

30210131321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30210131321 its reverse (12313101203), we get a palindrome (42523232524).

The spelling of 30210131321 in words is "thirty billion, two hundred ten million, one hundred thirty-one thousand, three hundred twenty-one".