30142423 has 2 divisors, whose sum is σ = 30142424. Its totient is φ = 30142422.

The previous prime is 30142403. The next prime is 30142433. The reversal of 30142423 is 32424103.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30142423 - 2¹³ = 30134231 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30142423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30142403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15071211 + 15071212.

It is an arithmetic number, because the mean of its divisors is an integer number (15071212).

Almost surely, 2^30142423 is an apocalyptic number.

30142423 is a deficient number, since it is larger than the sum of its proper divisors (1).

30142423 is an equidigital number, since it uses as much as digits as its factorization.

30142423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 30142423 is about 5490.2115624081. The cubic root of 30142423 is about 311.2141871560.

Adding to 30142423 its reverse (32424103), we get a palindrome (62566526).

It can be divided in two parts, 301 and 42423, that added together give a palindrome (42724).

The spelling of 30142423 in words is "thirty million, one hundred forty-two thousand, four hundred twenty-three".