30102311321 has 2 divisors, whose sum is σ = 30102311322. Its totient is φ = 30102311320.

The previous prime is 30102311273. The next prime is 30102311333. The reversal of 30102311321 is 12311320103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19500726025 + 10601585296 = 139645^2 + 102964^2 .

It is an emirp because it is prime and its reverse (12311320103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30102311321 - 2¹⁰ = 30102310297 is a prime.

It is a super-2 number, since 2×30102311321² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30102311321.

It is not a weakly prime, because it can be changed into another prime (30102311521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15051155660 + 15051155661.

It is an arithmetic number, because the mean of its divisors is an integer number (15051155661).

Almost surely, 2^30102311321 is an apocalyptic number.

It is an amenable number.

30102311321 is a deficient number, since it is larger than the sum of its proper divisors (1).

30102311321 is an equidigital number, since it uses as much as digits as its factorization.

30102311321 is an evil number, because the sum of its binary digits is even.

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

Adding to 30102311321 its reverse (12311320103), we get a palindrome (42413631424).

The spelling of 30102311321 in words is "thirty billion, one hundred two million, three hundred eleven thousand, three hundred twenty-one".