30020122231321 has 2 divisors, whose sum is σ = 30020122231322. Its totient is φ = 30020122231320.

The previous prime is 30020122231243. The next prime is 30020122231369. The reversal of 30020122231321 is 12313222102003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23586213886096 + 6433908345225 = 4856564^2 + 2536515^2 .

It is an emirp because it is prime and its reverse (12313222102003) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30020122231321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30020122231292 and 30020122231301.

It is not a weakly prime, because it can be changed into another prime (30020122234321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15010061115660 + 15010061115661.

It is an arithmetic number, because the mean of its divisors is an integer number (15010061115661).

Almost surely, 2^{30020122231321} is an apocalyptic number.

It is an amenable number.

30020122231321 is a deficient number, since it is larger than the sum of its proper divisors (1).

30020122231321 is an equidigital number, since it uses as much as digits as its factorization.

30020122231321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 30020122231321 its reverse (12313222102003), we get a palindrome (42333344333324).

The spelling of 30020122231321 in words is "thirty trillion, twenty billion, one hundred twenty-two million, two hundred thirty-one thousand, three hundred twenty-one".