30420444143 has 2 divisors, whose sum is σ = 30420444144. Its totient is φ = 30420444142.

The previous prime is 30420444097. The next prime is 30420444151. The reversal of 30420444143 is 34144402403.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30420444143 - 2¹⁶ = 30420378607 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30420444193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15210222071 + 15210222072.

It is an arithmetic number, because the mean of its divisors is an integer number (15210222072).

Almost surely, 2^30420444143 is an apocalyptic number.

30420444143 is a deficient number, since it is larger than the sum of its proper divisors (1).

30420444143 is an equidigital number, since it uses as much as digits as its factorization.

30420444143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 30420444143 its reverse (34144402403), we get a palindrome (64564846546).

The spelling of 30420444143 in words is "thirty billion, four hundred twenty million, four hundred forty-four thousand, one hundred forty-three".