30420142069 has 2 divisors, whose sum is σ = 30420142070. Its totient is φ = 30420142068.

The previous prime is 30420142007. The next prime is 30420142163. The reversal of 30420142069 is 96024102403.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28253239569 + 2166902500 = 168087^2 + 46550^2 .

It is a cyclic number.

It is not a de Polignac number, because 30420142069 - 2¹¹ = 30420140021 is a prime.

It is a super-2 number, since 2×30420142069² (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 30420142069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30420142169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15210071034 + 15210071035.

It is an arithmetic number, because the mean of its divisors is an integer number (15210071035).

Almost surely, 2^30420142069 is an apocalyptic number.

It is an amenable number.

30420142069 is a deficient number, since it is larger than the sum of its proper divisors (1).

30420142069 is an equidigital number, since it uses as much as digits as its factorization.

30420142069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The spelling of 30420142069 in words is "thirty billion, four hundred twenty million, one hundred forty-two thousand, sixty-nine".