30311222069 has 2 divisors, whose sum is σ = 30311222070. Its totient is φ = 30311222068.

The previous prime is 30311221957. The next prime is 30311222089. The reversal of 30311222069 is 96022211303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28675019569 + 1636202500 = 169337^2 + 40450^2 .

It is an emirp because it is prime and its reverse (96022211303) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30311222069 is a prime.

It is a super-2 number, since 2×30311222069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30311222089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15155611034 + 15155611035.

It is an arithmetic number, because the mean of its divisors is an integer number (15155611035).

Almost surely, 2^30311222069 is an apocalyptic number.

It is an amenable number.

30311222069 is a deficient number, since it is larger than the sum of its proper divisors (1).

30311222069 is an equidigital number, since it uses as much as digits as its factorization.

30311222069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 29.

The spelling of 30311222069 in words is "thirty billion, three hundred eleven million, two hundred twenty-two thousand, sixty-nine".