30420112277 has 2 divisors, whose sum is σ = 30420112278. Its totient is φ = 30420112276.

The previous prime is 30420112249. The next prime is 30420112313. The reversal of 30420112277 is 77221102403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26464457041 + 3955655236 = 162679^2 + 62894^2 .

It is an emirp because it is prime and its reverse (77221102403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30420112277 - 2¹² = 30420108181 is a prime.

It is a super-2 number, since 2×30420112277² (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 (30420115277) 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, 15210056138 + 15210056139.

It is an arithmetic number, because the mean of its divisors is an integer number (15210056139).

Almost surely, 2^30420112277 is an apocalyptic number.

It is an amenable number.

30420112277 is a deficient number, since it is larger than the sum of its proper divisors (1).

30420112277 is an equidigital number, since it uses as much as digits as its factorization.

30420112277 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 29.

The spelling of 30420112277 in words is "thirty billion, four hundred twenty million, one hundred twelve thousand, two hundred seventy-seven".